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Finding the Fourth Proportional to 6,601.32, 9,892.50 and 3,969.90

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Solution

The fourth proportional to 6,601.32, 9,892.50 and 3,969.90 is: 5,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,601.32 : 9,892.50 = 3,969.90 : x
  2. Step 2: Convert to fraction form
    6,601.32/9,892.50 = 3,969.90/x
  3. Step 3: Cross multiply
    6,601.32x = 9,892.50 × 3,969.90
  4. Step 4: Simplify right side
    6,601.32x = 39,272,235.75
  5. Step 5: Solve for x
    x = 39,272,235.75/6,601.32
  6. Step 6: Final answer
    x = 5,949.15

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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.