Home / 2,721.40-3,755.46-1,542.52

Finding the Fourth Proportional to 2,721.40, 3,755.46 and 1,542.52

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Solution

The fourth proportional to 2,721.40, 3,755.46 and 1,542.52 is: 2,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.40 : 3,755.46 = 1,542.52 : x
  2. Step 2: Convert to fraction form
    2,721.40/3,755.46 = 1,542.52/x
  3. Step 3: Cross multiply
    2,721.40x = 3,755.46 × 1,542.52
  4. Step 4: Simplify right side
    2,721.40x = 5,792,872.16
  5. Step 5: Solve for x
    x = 5,792,872.16/2,721.40
  6. Step 6: Final answer
    x = 2,128.64

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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.