Calculate subsequent proportion:
A recipe calls for 1(1/2) cups of flour to make servings for 6 people. How much flour should be used to make servings for 4 people?
Using x for the flour required for 4 people, the following proportion can be written.
6 people/4 people = 1(1/2) cups/x
The product of the extremes is (6)(x) = 6x.
The product of the means is (4) 1(1/2) = 6
Equate these two products and solve the resulting equation.
6x = 6
6x/6 = 6/6
X = 1
The unit of x is cups. Thus, servings for 4 people require 1 cup of flour.