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Finding the Fourth Proportional to 6,456.92, 8,909.81 and 3,623.91

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Solution

The fourth proportional to 6,456.92, 8,909.81 and 3,623.91 is: 5,000.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.92 : 8,909.81 = 3,623.91 : x
  2. Step 2: Convert to fraction form
    6,456.92/8,909.81 = 3,623.91/x
  3. Step 3: Cross multiply
    6,456.92x = 8,909.81 × 3,623.91
  4. Step 4: Simplify right side
    6,456.92x = 32,288,286.89
  5. Step 5: Solve for x
    x = 32,288,286.89/6,456.92
  6. Step 6: Final answer
    x = 5,000.57

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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.