Home / 2,212.38-3,316.75-912.33

Finding the Fourth Proportional to 2,212.38, 3,316.75 and 912.33

Calculator

Solution

The fourth proportional to 2,212.38, 3,316.75 and 912.33 is: 1,367.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.38 : 3,316.75 = 912.33 : x
  2. Step 2: Convert to fraction form
    2,212.38/3,316.75 = 912.33/x
  3. Step 3: Cross multiply
    2,212.38x = 3,316.75 × 912.33
  4. Step 4: Simplify right side
    2,212.38x = 3,025,968.25
  5. Step 5: Solve for x
    x = 3,025,968.25/2,212.38
  6. Step 6: Final answer
    x = 1,367.74

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.