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Finding the Fourth Proportional to 737.87, 1,107 and 347.85

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Solution

The fourth proportional to 737.87, 1,107 and 347.85 is: 521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.87 : 1,107 = 347.85 : x
  2. Step 2: Convert to fraction form
    737.87/1,107 = 347.85/x
  3. Step 3: Cross multiply
    737.87x = 1,107 × 347.85
  4. Step 4: Simplify right side
    737.87x = 385,069.95
  5. Step 5: Solve for x
    x = 385,069.95/737.87
  6. Step 6: Final answer
    x = 521.87

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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.