Home / 3,081.27-4,252.59-1,961.85

Finding the Fourth Proportional to 3,081.27, 4,252.59 and 1,961.85

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Solution

The fourth proportional to 3,081.27, 4,252.59 and 1,961.85 is: 2,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.27 : 4,252.59 = 1,961.85 : x
  2. Step 2: Convert to fraction form
    3,081.27/4,252.59 = 1,961.85/x
  3. Step 3: Cross multiply
    3,081.27x = 4,252.59 × 1,961.85
  4. Step 4: Simplify right side
    3,081.27x = 8,342,943.69
  5. Step 5: Solve for x
    x = 8,342,943.69/3,081.27
  6. Step 6: Final answer
    x = 2,707.63

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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.