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Finding the Fourth Proportional to 6,387.11, 8,814.12 and 3,592.61

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Solution

The fourth proportional to 6,387.11, 8,814.12 and 3,592.61 is: 4,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.11 : 8,814.12 = 3,592.61 : x
  2. Step 2: Convert to fraction form
    6,387.11/8,814.12 = 3,592.61/x
  3. Step 3: Cross multiply
    6,387.11x = 8,814.12 × 3,592.61
  4. Step 4: Simplify right side
    6,387.11x = 31,665,695.65
  5. Step 5: Solve for x
    x = 31,665,695.65/6,387.11
  6. Step 6: Final answer
    x = 4,957.75

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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.