Home / 2,721.59-3,755.73-1,542.63

Finding the Fourth Proportional to 2,721.59, 3,755.73 and 1,542.63

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Solution

The fourth proportional to 2,721.59, 3,755.73 and 1,542.63 is: 2,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.59 : 3,755.73 = 1,542.63 : x
  2. Step 2: Convert to fraction form
    2,721.59/3,755.73 = 1,542.63/x
  3. Step 3: Cross multiply
    2,721.59x = 3,755.73 × 1,542.63
  4. Step 4: Simplify right side
    2,721.59x = 5,793,701.77
  5. Step 5: Solve for x
    x = 5,793,701.77/2,721.59
  6. Step 6: Final answer
    x = 2,128.79

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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.