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Finding the Fourth Proportional to 6,497.28, 8,966.28 and 3,702.78

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Solution

The fourth proportional to 6,497.28, 8,966.28 and 3,702.78 is: 5,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,497.28 : 8,966.28 = 3,702.78 : x
  2. Step 2: Convert to fraction form
    6,497.28/8,966.28 = 3,702.78/x
  3. Step 3: Cross multiply
    6,497.28x = 8,966.28 × 3,702.78
  4. Step 4: Simplify right side
    6,497.28x = 33,200,162.26
  5. Step 5: Solve for x
    x = 33,200,162.26/6,497.28
  6. Step 6: Final answer
    x = 5,109.86

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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.