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Finding the Fourth Proportional to 758.55, 1,046.88 and 735.87

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Solution

The fourth proportional to 758.55, 1,046.88 and 735.87 is: 1,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.55 : 1,046.88 = 735.87 : x
  2. Step 2: Convert to fraction form
    758.55/1,046.88 = 735.87/x
  3. Step 3: Cross multiply
    758.55x = 1,046.88 × 735.87
  4. Step 4: Simplify right side
    758.55x = 770,367.59
  5. Step 5: Solve for x
    x = 770,367.59/758.55
  6. Step 6: Final answer
    x = 1,015.58

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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.