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Finding the Fourth Proportional to 958.91, 1,321.92 and 737.51

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Solution

The fourth proportional to 958.91, 1,321.92 and 737.51 is: 1,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.91 : 1,321.92 = 737.51 : x
  2. Step 2: Convert to fraction form
    958.91/1,321.92 = 737.51/x
  3. Step 3: Cross multiply
    958.91x = 1,321.92 × 737.51
  4. Step 4: Simplify right side
    958.91x = 974,922.61
  5. Step 5: Solve for x
    x = 974,922.61/958.91
  6. Step 6: Final answer
    x = 1,016.70

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1.5x scale

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.