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Finding the Fourth Proportional to 6,386.97, 8,814.09 and 3,592.47

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Solution

The fourth proportional to 6,386.97, 8,814.09 and 3,592.47 is: 4,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.97 : 8,814.09 = 3,592.47 : x
  2. Step 2: Convert to fraction form
    6,386.97/8,814.09 = 3,592.47/x
  3. Step 3: Cross multiply
    6,386.97x = 8,814.09 × 3,592.47
  4. Step 4: Simplify right side
    6,386.97x = 31,664,353.90
  5. Step 5: Solve for x
    x = 31,664,353.90/6,386.97
  6. Step 6: Final answer
    x = 4,957.65

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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.