Home / 7,764.28-10,715.14-4,227.42

Finding the Fourth Proportional to 7,764.28, 10,715.14 and 4,227.42

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Solution

The fourth proportional to 7,764.28, 10,715.14 and 4,227.42 is: 5,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,764.28 : 10,715.14 = 4,227.42 : x
  2. Step 2: Convert to fraction form
    7,764.28/10,715.14 = 4,227.42/x
  3. Step 3: Cross multiply
    7,764.28x = 10,715.14 × 4,227.42
  4. Step 4: Simplify right side
    7,764.28x = 45,297,397.14
  5. Step 5: Solve for x
    x = 45,297,397.14/7,764.28
  6. Step 6: Final answer
    x = 5,834.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.