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Finding the Fourth Proportional to 6,687.92, 9,230.40 and 4,336.89

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Solution

The fourth proportional to 6,687.92, 9,230.40 and 4,336.89 is: 5,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.92 : 9,230.40 = 4,336.89 : x
  2. Step 2: Convert to fraction form
    6,687.92/9,230.40 = 4,336.89/x
  3. Step 3: Cross multiply
    6,687.92x = 9,230.40 × 4,336.89
  4. Step 4: Simplify right side
    6,687.92x = 40,031,229.46
  5. Step 5: Solve for x
    x = 40,031,229.46/6,687.92
  6. Step 6: Final answer
    x = 5,985.61

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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.