Home / 3,682.76-5,081.33-2,489.97

Finding the Fourth Proportional to 3,682.76, 5,081.33 and 2,489.97

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Solution

The fourth proportional to 3,682.76, 5,081.33 and 2,489.97 is: 3,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.76 : 5,081.33 = 2,489.97 : x
  2. Step 2: Convert to fraction form
    3,682.76/5,081.33 = 2,489.97/x
  3. Step 3: Cross multiply
    3,682.76x = 5,081.33 × 2,489.97
  4. Step 4: Simplify right side
    3,682.76x = 12,652,359.26
  5. Step 5: Solve for x
    x = 12,652,359.26/3,682.76
  6. Step 6: Final answer
    x = 3,435.56

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1.5x scale

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.