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Finding the Fourth Proportional to 951.73, 1,426.74 and 513.22

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Solution

The fourth proportional to 951.73, 1,426.74 and 513.22 is: 769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.73 : 1,426.74 = 513.22 : x
  2. Step 2: Convert to fraction form
    951.73/1,426.74 = 513.22/x
  3. Step 3: Cross multiply
    951.73x = 1,426.74 × 513.22
  4. Step 4: Simplify right side
    951.73x = 732,231.50
  5. Step 5: Solve for x
    x = 732,231.50/951.73
  6. Step 6: Final answer
    x = 769.37

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Double scale
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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.