Home / 5,605.30-7,731.20-3,614.86

Finding the Fourth Proportional to 5,605.30, 7,731.20 and 3,614.86

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Solution

The fourth proportional to 5,605.30, 7,731.20 and 3,614.86 is: 4,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.30 : 7,731.20 = 3,614.86 : x
  2. Step 2: Convert to fraction form
    5,605.30/7,731.20 = 3,614.86/x
  3. Step 3: Cross multiply
    5,605.30x = 7,731.20 × 3,614.86
  4. Step 4: Simplify right side
    5,605.30x = 27,947,148.90
  5. Step 5: Solve for x
    x = 27,947,148.90/5,605.30
  6. Step 6: Final answer
    x = 4,985.85

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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.