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Finding the Fourth Proportional to 951.17, 1,422.06 and 806.54

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Solution

The fourth proportional to 951.17, 1,422.06 and 806.54 is: 1,205.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.17 : 1,422.06 = 806.54 : x
  2. Step 2: Convert to fraction form
    951.17/1,422.06 = 806.54/x
  3. Step 3: Cross multiply
    951.17x = 1,422.06 × 806.54
  4. Step 4: Simplify right side
    951.17x = 1,146,941.16
  5. Step 5: Solve for x
    x = 1,146,941.16/951.17
  6. Step 6: Final answer
    x = 1,205.83

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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.