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Finding the Fourth Proportional to 952.03, 1,426.20 and 918.42

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Solution

The fourth proportional to 952.03, 1,426.20 and 918.42 is: 1,375.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.03 : 1,426.20 = 918.42 : x
  2. Step 2: Convert to fraction form
    952.03/1,426.20 = 918.42/x
  3. Step 3: Cross multiply
    952.03x = 1,426.20 × 918.42
  4. Step 4: Simplify right side
    952.03x = 1,309,850.60
  5. Step 5: Solve for x
    x = 1,309,850.60/952.03
  6. Step 6: Final answer
    x = 1,375.85

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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.