Home / 2,182.23-3,273.65-721.22

Finding the Fourth Proportional to 2,182.23, 3,273.65 and 721.22

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Solution

The fourth proportional to 2,182.23, 3,273.65 and 721.22 is: 1,081.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.23 : 3,273.65 = 721.22 : x
  2. Step 2: Convert to fraction form
    2,182.23/3,273.65 = 721.22/x
  3. Step 3: Cross multiply
    2,182.23x = 3,273.65 × 721.22
  4. Step 4: Simplify right side
    2,182.23x = 2,361,001.88
  5. Step 5: Solve for x
    x = 2,361,001.88/2,182.23
  6. Step 6: Final answer
    x = 1,081.92

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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.