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Finding the Fourth Proportional to 951.79, 1,427.92 and 562.11

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Solution

The fourth proportional to 951.79, 1,427.92 and 562.11 is: 843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.79 : 1,427.92 = 562.11 : x
  2. Step 2: Convert to fraction form
    951.79/1,427.92 = 562.11/x
  3. Step 3: Cross multiply
    951.79x = 1,427.92 × 562.11
  4. Step 4: Simplify right side
    951.79x = 802,648.11
  5. Step 5: Solve for x
    x = 802,648.11/951.79
  6. Step 6: Final answer
    x = 843.30

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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.