Home / 2,721.28-3,753.10-1,726.20

Finding the Fourth Proportional to 2,721.28, 3,753.10 and 1,726.20

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Solution

The fourth proportional to 2,721.28, 3,753.10 and 1,726.20 is: 2,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.28 : 3,753.10 = 1,726.20 : x
  2. Step 2: Convert to fraction form
    2,721.28/3,753.10 = 1,726.20/x
  3. Step 3: Cross multiply
    2,721.28x = 3,753.10 × 1,726.20
  4. Step 4: Simplify right side
    2,721.28x = 6,478,601.22
  5. Step 5: Solve for x
    x = 6,478,601.22/2,721.28
  6. Step 6: Final answer
    x = 2,380.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.