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Finding the Fourth Proportional to 951.48, 1,305 and 935.64

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Solution

The fourth proportional to 951.48, 1,305 and 935.64 is: 1,283.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.48 : 1,305 = 935.64 : x
  2. Step 2: Convert to fraction form
    951.48/1,305 = 935.64/x
  3. Step 3: Cross multiply
    951.48x = 1,305 × 935.64
  4. Step 4: Simplify right side
    951.48x = 1,221,010.20
  5. Step 5: Solve for x
    x = 1,221,010.20/951.48
  6. Step 6: Final answer
    x = 1,283.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.