Solving Proportions

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What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

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How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then isolate the variable.

Front

What is cross-multiplication?

Back

Cross-multiplication is a method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.

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Back

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Back

c = 8

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Back

x = 28

Front

What does it mean if two ratios are equivalent?

Back

If two ratios are equivalent, it means they represent the same relationship between quantities.

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Back

k = 165

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Back

x = -4

Front

What is the first step in solving a proportion?

Back

The first step is to set the two ratios equal to each other.