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Finding the Fourth Proportional to 807.56, 1,110.72 and 737.90

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Solution

The fourth proportional to 807.56, 1,110.72 and 737.90 is: 1,014.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    807.56 : 1,110.72 = 737.90 : x
  2. Step 2: Convert to fraction form
    807.56/1,110.72 = 737.90/x
  3. Step 3: Cross multiply
    807.56x = 1,110.72 × 737.90
  4. Step 4: Simplify right side
    807.56x = 819,600.29
  5. Step 5: Solve for x
    x = 819,600.29/807.56
  6. Step 6: Final answer
    x = 1,014.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.