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Finding the Fourth Proportional to 737.48, 1,103.78 and 711.56

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Solution

The fourth proportional to 737.48, 1,103.78 and 711.56 is: 1,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.48 : 1,103.78 = 711.56 : x
  2. Step 2: Convert to fraction form
    737.48/1,103.78 = 711.56/x
  3. Step 3: Cross multiply
    737.48x = 1,103.78 × 711.56
  4. Step 4: Simplify right side
    737.48x = 785,405.70
  5. Step 5: Solve for x
    x = 785,405.70/737.48
  6. Step 6: Final answer
    x = 1,064.99

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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.