Home / 3,723.96-5,138.33-2,231.33

Finding the Fourth Proportional to 3,723.96, 5,138.33 and 2,231.33

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Solution

The fourth proportional to 3,723.96, 5,138.33 and 2,231.33 is: 3,078.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.96 : 5,138.33 = 2,231.33 : x
  2. Step 2: Convert to fraction form
    3,723.96/5,138.33 = 2,231.33/x
  3. Step 3: Cross multiply
    3,723.96x = 5,138.33 × 2,231.33
  4. Step 4: Simplify right side
    3,723.96x = 11,465,273.03
  5. Step 5: Solve for x
    x = 11,465,273.03/3,723.96
  6. Step 6: Final answer
    x = 3,078.79

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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.