Home / 3,081.24-4,642.44-2,789.11

Finding the Fourth Proportional to 3,081.24, 4,642.44 and 2,789.11

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Solution

The fourth proportional to 3,081.24, 4,642.44 and 2,789.11 is: 4,202.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.24 : 4,642.44 = 2,789.11 : x
  2. Step 2: Convert to fraction form
    3,081.24/4,642.44 = 2,789.11/x
  3. Step 3: Cross multiply
    3,081.24x = 4,642.44 × 2,789.11
  4. Step 4: Simplify right side
    3,081.24x = 12,948,265.96
  5. Step 5: Solve for x
    x = 12,948,265.96/3,081.24
  6. Step 6: Final answer
    x = 4,202.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.