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Finding the Fourth Proportional to 1,353.50, 2,031.02 and 737.20

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Solution

The fourth proportional to 1,353.50, 2,031.02 and 737.20 is: 1,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.50 : 2,031.02 = 737.20 : x
  2. Step 2: Convert to fraction form
    1,353.50/2,031.02 = 737.20/x
  3. Step 3: Cross multiply
    1,353.50x = 2,031.02 × 737.20
  4. Step 4: Simplify right side
    1,353.50x = 1,497,267.94
  5. Step 5: Solve for x
    x = 1,497,267.94/1,353.50
  6. Step 6: Final answer
    x = 1,106.22

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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.