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Finding the Fourth Proportional to 6,618.82, 9,906.92 and 3,494.36

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Solution

The fourth proportional to 6,618.82, 9,906.92 and 3,494.36 is: 5,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.82 : 9,906.92 = 3,494.36 : x
  2. Step 2: Convert to fraction form
    6,618.82/9,906.92 = 3,494.36/x
  3. Step 3: Cross multiply
    6,618.82x = 9,906.92 × 3,494.36
  4. Step 4: Simplify right side
    6,618.82x = 34,618,344.97
  5. Step 5: Solve for x
    x = 34,618,344.97/6,618.82
  6. Step 6: Final answer
    x = 5,230.29

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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.