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Finding the Fourth Proportional to 6,669.97, 9,204.10 and 3,685.78

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Solution

The fourth proportional to 6,669.97, 9,204.10 and 3,685.78 is: 5,086.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.97 : 9,204.10 = 3,685.78 : x
  2. Step 2: Convert to fraction form
    6,669.97/9,204.10 = 3,685.78/x
  3. Step 3: Cross multiply
    6,669.97x = 9,204.10 × 3,685.78
  4. Step 4: Simplify right side
    6,669.97x = 33,924,269.29
  5. Step 5: Solve for x
    x = 33,924,269.29/6,669.97
  6. Step 6: Final answer
    x = 5,086.12

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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.