Home / 2,721.28-4,081.83-1,489.27

Finding the Fourth Proportional to 2,721.28, 4,081.83 and 1,489.27

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Solution

The fourth proportional to 2,721.28, 4,081.83 and 1,489.27 is: 2,233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.28 : 4,081.83 = 1,489.27 : x
  2. Step 2: Convert to fraction form
    2,721.28/4,081.83 = 1,489.27/x
  3. Step 3: Cross multiply
    2,721.28x = 4,081.83 × 1,489.27
  4. Step 4: Simplify right side
    2,721.28x = 6,078,946.96
  5. Step 5: Solve for x
    x = 6,078,946.96/2,721.28
  6. Step 6: Final answer
    x = 2,233.86

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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.