Home / 2,721.52-4,082.28-1,259.88

Finding the Fourth Proportional to 2,721.52, 4,082.28 and 1,259.88

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Solution

The fourth proportional to 2,721.52, 4,082.28 and 1,259.88 is: 1,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.52 : 4,082.28 = 1,259.88 : x
  2. Step 2: Convert to fraction form
    2,721.52/4,082.28 = 1,259.88/x
  3. Step 3: Cross multiply
    2,721.52x = 4,082.28 × 1,259.88
  4. Step 4: Simplify right side
    2,721.52x = 5,143,182.93
  5. Step 5: Solve for x
    x = 5,143,182.93/2,721.52
  6. Step 6: Final answer
    x = 1,889.82

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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.