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Finding the Fourth Proportional to 958.37, 1,319.27 and 748.17

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Solution

The fourth proportional to 958.37, 1,319.27 and 748.17 is: 1,029.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.37 : 1,319.27 = 748.17 : x
  2. Step 2: Convert to fraction form
    958.37/1,319.27 = 748.17/x
  3. Step 3: Cross multiply
    958.37x = 1,319.27 × 748.17
  4. Step 4: Simplify right side
    958.37x = 987,034.50
  5. Step 5: Solve for x
    x = 987,034.50/958.37
  6. Step 6: Final answer
    x = 1,029.92

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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.