Home / 3,081.18-4,247.76-2,084.88

Finding the Fourth Proportional to 3,081.18, 4,247.76 and 2,084.88

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Solution

The fourth proportional to 3,081.18, 4,247.76 and 2,084.88 is: 2,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.18 : 4,247.76 = 2,084.88 : x
  2. Step 2: Convert to fraction form
    3,081.18/4,247.76 = 2,084.88/x
  3. Step 3: Cross multiply
    3,081.18x = 4,247.76 × 2,084.88
  4. Step 4: Simplify right side
    3,081.18x = 8,856,069.87
  5. Step 5: Solve for x
    x = 8,856,069.87/3,081.18
  6. Step 6: Final answer
    x = 2,874.25

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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.