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Finding the Fourth Proportional to 6,651.05, 9,177.17 and 3,998.48

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Solution

The fourth proportional to 6,651.05, 9,177.17 and 3,998.48 is: 5,517.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.05 : 9,177.17 = 3,998.48 : x
  2. Step 2: Convert to fraction form
    6,651.05/9,177.17 = 3,998.48/x
  3. Step 3: Cross multiply
    6,651.05x = 9,177.17 × 3,998.48
  4. Step 4: Simplify right side
    6,651.05x = 36,694,664.82
  5. Step 5: Solve for x
    x = 36,694,664.82/6,651.05
  6. Step 6: Final answer
    x = 5,517.13

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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.