Solving Proportions

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What is a proportion?

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A proportion is an equation that shows two equivalent ratios.

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What is the correct proportion to solve: George pays $3 for every 5 donuts he buys. If he buys 25 donuts, how much will he pay?

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How do you find the value of x in a proportion?

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Cross-multiply the ratios and solve for x.

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What is the first step in solving a proportion?

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Set the two ratios equal to each other.

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What does it mean if two ratios are equivalent?

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It means they represent the same relationship or value.

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What is an example of a real-life proportion?

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If 2 apples cost $1, then 4 apples cost $2.