Home / 3,081.28-4,251-2,033.68

Finding the Fourth Proportional to 3,081.28, 4,251 and 2,033.68

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Solution

The fourth proportional to 3,081.28, 4,251 and 2,033.68 is: 2,805.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.28 : 4,251 = 2,033.68 : x
  2. Step 2: Convert to fraction form
    3,081.28/4,251 = 2,033.68/x
  3. Step 3: Cross multiply
    3,081.28x = 4,251 × 2,033.68
  4. Step 4: Simplify right side
    3,081.28x = 8,645,173.68
  5. Step 5: Solve for x
    x = 8,645,173.68/3,081.28
  6. Step 6: Final answer
    x = 2,805.71

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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.