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Finding the Fourth Proportional to 1,104.14, 1,656.20 and 454.41

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Solution

The fourth proportional to 1,104.14, 1,656.20 and 454.41 is: 681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104.14 : 1,656.20 = 454.41 : x
  2. Step 2: Convert to fraction form
    1,104.14/1,656.20 = 454.41/x
  3. Step 3: Cross multiply
    1,104.14x = 1,656.20 × 454.41
  4. Step 4: Simplify right side
    1,104.14x = 752,591.57
  5. Step 5: Solve for x
    x = 752,591.57/1,104.14
  6. Step 6: Final answer
    x = 681.61

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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.