Home / 2,720.24-3,753.80-1,541.20

Finding the Fourth Proportional to 2,720.24, 3,753.80 and 1,541.20

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Solution

The fourth proportional to 2,720.24, 3,753.80 and 1,541.20 is: 2,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.24 : 3,753.80 = 1,541.20 : x
  2. Step 2: Convert to fraction form
    2,720.24/3,753.80 = 1,541.20/x
  3. Step 3: Cross multiply
    2,720.24x = 3,753.80 × 1,541.20
  4. Step 4: Simplify right side
    2,720.24x = 5,785,356.56
  5. Step 5: Solve for x
    x = 5,785,356.56/2,720.24
  6. Step 6: Final answer
    x = 2,126.78

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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.