Home / 5,614.28-8,418.98-2,981.21

Finding the Fourth Proportional to 5,614.28, 8,418.98 and 2,981.21

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Solution

The fourth proportional to 5,614.28, 8,418.98 and 2,981.21 is: 4,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.28 : 8,418.98 = 2,981.21 : x
  2. Step 2: Convert to fraction form
    5,614.28/8,418.98 = 2,981.21/x
  3. Step 3: Cross multiply
    5,614.28x = 8,418.98 × 2,981.21
  4. Step 4: Simplify right side
    5,614.28x = 25,098,775.87
  5. Step 5: Solve for x
    x = 25,098,775.87/5,614.28
  6. Step 6: Final answer
    x = 4,470.52

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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.