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Finding the Fourth Proportional to 951.08, 1,427.03 and 691.37

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Solution

The fourth proportional to 951.08, 1,427.03 and 691.37 is: 1,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.08 : 1,427.03 = 691.37 : x
  2. Step 2: Convert to fraction form
    951.08/1,427.03 = 691.37/x
  3. Step 3: Cross multiply
    951.08x = 1,427.03 × 691.37
  4. Step 4: Simplify right side
    951.08x = 986,605.73
  5. Step 5: Solve for x
    x = 986,605.73/951.08
  6. Step 6: Final answer
    x = 1,037.35

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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.