Home / 2,755.31-3,791.04-2,381.09

Finding the Fourth Proportional to 2,755.31, 3,791.04 and 2,381.09

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Solution

The fourth proportional to 2,755.31, 3,791.04 and 2,381.09 is: 3,276.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.31 : 3,791.04 = 2,381.09 : x
  2. Step 2: Convert to fraction form
    2,755.31/3,791.04 = 2,381.09/x
  3. Step 3: Cross multiply
    2,755.31x = 3,791.04 × 2,381.09
  4. Step 4: Simplify right side
    2,755.31x = 9,026,788.48
  5. Step 5: Solve for x
    x = 9,026,788.48/2,755.31
  6. Step 6: Final answer
    x = 3,276.15

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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.