# How To Solve Ratio Problem

However, they can also be shown in a number of other ways; the three examples below are all different expressions of the same ratio.One of the reasons that ratios are useful is that they enable us to scale amounts.To be on the safe side, though, I'll give both the "exact" (fractional) form and also the rounded (more real-world) form: If this question were being asked in the homework for the section on "percent of" word problems, then I would have the tax rate as a percentage from the info they gave me for the first property; and then I would have back-solved, using the rate I'd just found, for the value of the second property.However, since this question is being asked in the section on proportions, I'll solve using a proportion.For example: There are six practice questions below.Should you need further practice afterwards, we recommend the numerical reasoning packages available from Job Test Prep.Assuming you have the method down, the only reason to get this wrong is a careless arithmetic error.For those of you making these errors, I hope you're starting to see why it's a better use of your limited test taking time to double check your work on the medium questions than to rip your hair out and spend a lot of time trying to puzzle out the hardest questions which very few people can answer.

This is particularly handy for things like scale models or maps, where really big numbers can be converted to much smaller representations that are still accurate.

I'll use this set-up to make sure that I write out my proportion correctly, and then I'll solve for the required weight value.

By the way, since I'm looking for a weight, I'm going to use Since this is a "real world" word problem, I should probably round or decimalize my exact fractional solution to get a practical "real world" sort of number.

Solving proportions is simply a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying, and solving the resulting equation.

The exercise set will probably start out by asking for the solutions to straightforward simple proportions, but they might use the "odds" notation, something like this: Okay; this proportion has more variables than I've seen previously, and they're in expressions, rather than standing by themselves. First, I convert the colon-based odds-notation ratios to fractional form: First, I'll need to convert the "two feet four inches" into a feet-only measurement.

If the proportions in this recipe are to be used to make 3 loaves of bread, how many cups of flour will be needed?

## One thought on “How To Solve Ratio Problem”

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