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Finding the Fourth Proportional to 6,663.68, 9,988.83 and 2,278.14

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Solution

The fourth proportional to 6,663.68, 9,988.83 and 2,278.14 is: 3,414.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.68 : 9,988.83 = 2,278.14 : x
  2. Step 2: Convert to fraction form
    6,663.68/9,988.83 = 2,278.14/x
  3. Step 3: Cross multiply
    6,663.68x = 9,988.83 × 2,278.14
  4. Step 4: Simplify right side
    6,663.68x = 22,755,915.72
  5. Step 5: Solve for x
    x = 22,755,915.72/6,663.68
  6. Step 6: Final answer
    x = 3,414.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.