Home / 3,976.92-5,486.27-2,719.74

Finding the Fourth Proportional to 3,976.92, 5,486.27 and 2,719.74

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Solution

The fourth proportional to 3,976.92, 5,486.27 and 2,719.74 is: 3,751.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.92 : 5,486.27 = 2,719.74 : x
  2. Step 2: Convert to fraction form
    3,976.92/5,486.27 = 2,719.74/x
  3. Step 3: Cross multiply
    3,976.92x = 5,486.27 × 2,719.74
  4. Step 4: Simplify right side
    3,976.92x = 14,921,227.97
  5. Step 5: Solve for x
    x = 14,921,227.97/3,976.92
  6. Step 6: Final answer
    x = 3,751.96

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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.