Home / 3,251.21-4,489.29-2,619.68

Finding the Fourth Proportional to 3,251.21, 4,489.29 and 2,619.68

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Solution

The fourth proportional to 3,251.21, 4,489.29 and 2,619.68 is: 3,617.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.21 : 4,489.29 = 2,619.68 : x
  2. Step 2: Convert to fraction form
    3,251.21/4,489.29 = 2,619.68/x
  3. Step 3: Cross multiply
    3,251.21x = 4,489.29 × 2,619.68
  4. Step 4: Simplify right side
    3,251.21x = 11,760,480.78
  5. Step 5: Solve for x
    x = 11,760,480.78/3,251.21
  6. Step 6: Final answer
    x = 3,617.27

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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.