Home / 2,182.41-3,273.30-721.53

Finding the Fourth Proportional to 2,182.41, 3,273.30 and 721.53

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Solution

The fourth proportional to 2,182.41, 3,273.30 and 721.53 is: 1,082.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.41 : 3,273.30 = 721.53 : x
  2. Step 2: Convert to fraction form
    2,182.41/3,273.30 = 721.53/x
  3. Step 3: Cross multiply
    2,182.41x = 3,273.30 × 721.53
  4. Step 4: Simplify right side
    2,182.41x = 2,361,784.15
  5. Step 5: Solve for x
    x = 2,361,784.15/2,182.41
  6. Step 6: Final answer
    x = 1,082.19

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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.