RATIO AND PROPORTION



Ratio and Proportion


When you prepare recipes, paint your house, or repair gears in a large machine or in a car transmission, you use ratios and proportions.

Say a recipe to make brownie requires 4 cups of flour for 6 persons

You may want to know how much flower to put for 24 persons

As a former math teacher, I used to tell my students to set it up as you see below:

You just cannot go wrong when you take this first step:

The setup you see above can be translated into the following proportion:


  
4 cupsx
  =        
624

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