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Finding the Fourth Proportional to 1,321.96, 1,824.24 and 732.46

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Solution

The fourth proportional to 1,321.96, 1,824.24 and 732.46 is: 1,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321.96 : 1,824.24 = 732.46 : x
  2. Step 2: Convert to fraction form
    1,321.96/1,824.24 = 732.46/x
  3. Step 3: Cross multiply
    1,321.96x = 1,824.24 × 732.46
  4. Step 4: Simplify right side
    1,321.96x = 1,336,182.83
  5. Step 5: Solve for x
    x = 1,336,182.83/1,321.96
  6. Step 6: Final answer
    x = 1,010.76

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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.