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Finding the Fourth Proportional to 1,353.68, 2,029.56 and 736.88

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Solution

The fourth proportional to 1,353.68, 2,029.56 and 736.88 is: 1,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.68 : 2,029.56 = 736.88 : x
  2. Step 2: Convert to fraction form
    1,353.68/2,029.56 = 736.88/x
  3. Step 3: Cross multiply
    1,353.68x = 2,029.56 × 736.88
  4. Step 4: Simplify right side
    1,353.68x = 1,495,542.17
  5. Step 5: Solve for x
    x = 1,495,542.17/1,353.68
  6. Step 6: Final answer
    x = 1,104.80

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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.