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Finding the Fourth Proportional to 737.35, 1,106.09 and 371.90

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Solution

The fourth proportional to 737.35, 1,106.09 and 371.90 is: 557.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.35 : 1,106.09 = 371.90 : x
  2. Step 2: Convert to fraction form
    737.35/1,106.09 = 371.90/x
  3. Step 3: Cross multiply
    737.35x = 1,106.09 × 371.90
  4. Step 4: Simplify right side
    737.35x = 411,357.17
  5. Step 5: Solve for x
    x = 411,357.17/737.35
  6. Step 6: Final answer
    x = 557.89

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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.