Home / 2,720.97-3,755.10-1,542.15

Finding the Fourth Proportional to 2,720.97, 3,755.10 and 1,542.15

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Solution

The fourth proportional to 2,720.97, 3,755.10 and 1,542.15 is: 2,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.97 : 3,755.10 = 1,542.15 : x
  2. Step 2: Convert to fraction form
    2,720.97/3,755.10 = 1,542.15/x
  3. Step 3: Cross multiply
    2,720.97x = 3,755.10 × 1,542.15
  4. Step 4: Simplify right side
    2,720.97x = 5,790,927.47
  5. Step 5: Solve for x
    x = 5,790,927.47/2,720.97
  6. Step 6: Final answer
    x = 2,128.26

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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.