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Finding the Fourth Proportional to 955.90, 1,432.12 and 736.89

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Solution

The fourth proportional to 955.90, 1,432.12 and 736.89 is: 1,104.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.90 : 1,432.12 = 736.89 : x
  2. Step 2: Convert to fraction form
    955.90/1,432.12 = 736.89/x
  3. Step 3: Cross multiply
    955.90x = 1,432.12 × 736.89
  4. Step 4: Simplify right side
    955.90x = 1,055,314.91
  5. Step 5: Solve for x
    x = 1,055,314.91/955.90
  6. Step 6: Final answer
    x = 1,104.00

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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.