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Finding the Fourth Proportional to 892.20, 1,344.38 and 733.44

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Solution

The fourth proportional to 892.20, 1,344.38 and 733.44 is: 1,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.20 : 1,344.38 = 733.44 : x
  2. Step 2: Convert to fraction form
    892.20/1,344.38 = 733.44/x
  3. Step 3: Cross multiply
    892.20x = 1,344.38 × 733.44
  4. Step 4: Simplify right side
    892.20x = 986,022.07
  5. Step 5: Solve for x
    x = 986,022.07/892.20
  6. Step 6: Final answer
    x = 1,105.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.