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Finding the Fourth Proportional to 6,381.38, 8,805.24 and 3,548.68

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Solution

The fourth proportional to 6,381.38, 8,805.24 and 3,548.68 is: 4,896.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.38 : 8,805.24 = 3,548.68 : x
  2. Step 2: Convert to fraction form
    6,381.38/8,805.24 = 3,548.68/x
  3. Step 3: Cross multiply
    6,381.38x = 8,805.24 × 3,548.68
  4. Step 4: Simplify right side
    6,381.38x = 31,246,979.08
  5. Step 5: Solve for x
    x = 31,246,979.08/6,381.38
  6. Step 6: Final answer
    x = 4,896.59

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Double scale
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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.