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Finding the Fourth Proportional to 3,938.97, 5,908.62 and 1,473.54

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Solution

The fourth proportional to 3,938.97, 5,908.62 and 1,473.54 is: 2,210.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.97 : 5,908.62 = 1,473.54 : x
  2. Step 2: Convert to fraction form
    3,938.97/5,908.62 = 1,473.54/x
  3. Step 3: Cross multiply
    3,938.97x = 5,908.62 × 1,473.54
  4. Step 4: Simplify right side
    3,938.97x = 8,706,587.91
  5. Step 5: Solve for x
    x = 8,706,587.91/3,938.97
  6. Step 6: Final answer
    x = 2,210.37

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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.