Home / 3,101.31-4,279.75-1,842.97

Finding the Fourth Proportional to 3,101.31, 4,279.75 and 1,842.97

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Solution

The fourth proportional to 3,101.31, 4,279.75 and 1,842.97 is: 2,543.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.31 : 4,279.75 = 1,842.97 : x
  2. Step 2: Convert to fraction form
    3,101.31/4,279.75 = 1,842.97/x
  3. Step 3: Cross multiply
    3,101.31x = 4,279.75 × 1,842.97
  4. Step 4: Simplify right side
    3,101.31x = 7,887,450.86
  5. Step 5: Solve for x
    x = 7,887,450.86/3,101.31
  6. Step 6: Final answer
    x = 2,543.26

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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.