Home / 2,182.06-3,273.36-721.36

Finding the Fourth Proportional to 2,182.06, 3,273.36 and 721.36

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Solution

The fourth proportional to 2,182.06, 3,273.36 and 721.36 is: 1,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.06 : 3,273.36 = 721.36 : x
  2. Step 2: Convert to fraction form
    2,182.06/3,273.36 = 721.36/x
  3. Step 3: Cross multiply
    2,182.06x = 3,273.36 × 721.36
  4. Step 4: Simplify right side
    2,182.06x = 2,361,270.97
  5. Step 5: Solve for x
    x = 2,361,270.97/2,182.06
  6. Step 6: Final answer
    x = 1,082.13

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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.