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Finding the Fourth Proportional to 6,385.64, 8,809.97 and 3,732.89

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Solution

The fourth proportional to 6,385.64, 8,809.97 and 3,732.89 is: 5,150.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.64 : 8,809.97 = 3,732.89 : x
  2. Step 2: Convert to fraction form
    6,385.64/8,809.97 = 3,732.89/x
  3. Step 3: Cross multiply
    6,385.64x = 8,809.97 × 3,732.89
  4. Step 4: Simplify right side
    6,385.64x = 32,886,586.20
  5. Step 5: Solve for x
    x = 32,886,586.20/6,385.64
  6. Step 6: Final answer
    x = 5,150.09

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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.