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Finding the Fourth Proportional to 951.27, 1,312.98 and 652.38

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Solution

The fourth proportional to 951.27, 1,312.98 and 652.38 is: 900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.27 : 1,312.98 = 652.38 : x
  2. Step 2: Convert to fraction form
    951.27/1,312.98 = 652.38/x
  3. Step 3: Cross multiply
    951.27x = 1,312.98 × 652.38
  4. Step 4: Simplify right side
    951.27x = 856,561.89
  5. Step 5: Solve for x
    x = 856,561.89/951.27
  6. Step 6: Final answer
    x = 900.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.