Home / 2,720.71-3,753.75-1,541.56

Finding the Fourth Proportional to 2,720.71, 3,753.75 and 1,541.56

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Solution

The fourth proportional to 2,720.71, 3,753.75 and 1,541.56 is: 2,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.71 : 3,753.75 = 1,541.56 : x
  2. Step 2: Convert to fraction form
    2,720.71/3,753.75 = 1,541.56/x
  3. Step 3: Cross multiply
    2,720.71x = 3,753.75 × 1,541.56
  4. Step 4: Simplify right side
    2,720.71x = 5,786,630.85
  5. Step 5: Solve for x
    x = 5,786,630.85/2,720.71
  6. Step 6: Final answer
    x = 2,126.88

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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.