Home / 2,182.34-3,273.67-721.50

Finding the Fourth Proportional to 2,182.34, 3,273.67 and 721.50

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Solution

The fourth proportional to 2,182.34, 3,273.67 and 721.50 is: 1,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.34 : 3,273.67 = 721.50 : x
  2. Step 2: Convert to fraction form
    2,182.34/3,273.67 = 721.50/x
  3. Step 3: Cross multiply
    2,182.34x = 3,273.67 × 721.50
  4. Step 4: Simplify right side
    2,182.34x = 2,361,952.91
  5. Step 5: Solve for x
    x = 2,361,952.91/2,182.34
  6. Step 6: Final answer
    x = 1,082.30

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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.