Home / 2,720.98-3,754.92-1,542.28

Finding the Fourth Proportional to 2,720.98, 3,754.92 and 1,542.28

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Solution

The fourth proportional to 2,720.98, 3,754.92 and 1,542.28 is: 2,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.98 : 3,754.92 = 1,542.28 : x
  2. Step 2: Convert to fraction form
    2,720.98/3,754.92 = 1,542.28/x
  3. Step 3: Cross multiply
    2,720.98x = 3,754.92 × 1,542.28
  4. Step 4: Simplify right side
    2,720.98x = 5,791,138.02
  5. Step 5: Solve for x
    x = 5,791,138.02/2,720.98
  6. Step 6: Final answer
    x = 2,128.33

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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.