Home / 2,721.11-3,754.92-1,542.37

Finding the Fourth Proportional to 2,721.11, 3,754.92 and 1,542.37

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Solution

The fourth proportional to 2,721.11, 3,754.92 and 1,542.37 is: 2,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.11 : 3,754.92 = 1,542.37 : x
  2. Step 2: Convert to fraction form
    2,721.11/3,754.92 = 1,542.37/x
  3. Step 3: Cross multiply
    2,721.11x = 3,754.92 × 1,542.37
  4. Step 4: Simplify right side
    2,721.11x = 5,791,475.96
  5. Step 5: Solve for x
    x = 5,791,475.96/2,721.11
  6. Step 6: Final answer
    x = 2,128.35

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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.