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Finding the Fourth Proportional to 1,073.92, 1,481.92 and 608.17

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Solution

The fourth proportional to 1,073.92, 1,481.92 and 608.17 is: 839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073.92 : 1,481.92 = 608.17 : x
  2. Step 2: Convert to fraction form
    1,073.92/1,481.92 = 608.17/x
  3. Step 3: Cross multiply
    1,073.92x = 1,481.92 × 608.17
  4. Step 4: Simplify right side
    1,073.92x = 901,259.29
  5. Step 5: Solve for x
    x = 901,259.29/1,073.92
  6. Step 6: Final answer
    x = 839.22

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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.