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Finding the Fourth Proportional to 3,737.98, 5,129.98 and 3,439.90

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Solution

The fourth proportional to 3,737.98, 5,129.98 and 3,439.90 is: 4,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,737.98 : 5,129.98 = 3,439.90 : x
  2. Step 2: Convert to fraction form
    3,737.98/5,129.98 = 3,439.90/x
  3. Step 3: Cross multiply
    3,737.98x = 5,129.98 × 3,439.90
  4. Step 4: Simplify right side
    3,737.98x = 17,646,618.20
  5. Step 5: Solve for x
    x = 17,646,618.20/3,737.98
  6. Step 6: Final answer
    x = 4,720.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.