Home / 3,081.76-4,236.41-2,654.80

Finding the Fourth Proportional to 3,081.76, 4,236.41 and 2,654.80

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Solution

The fourth proportional to 3,081.76, 4,236.41 and 2,654.80 is: 3,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.76 : 4,236.41 = 2,654.80 : x
  2. Step 2: Convert to fraction form
    3,081.76/4,236.41 = 2,654.80/x
  3. Step 3: Cross multiply
    3,081.76x = 4,236.41 × 2,654.80
  4. Step 4: Simplify right side
    3,081.76x = 11,246,821.27
  5. Step 5: Solve for x
    x = 11,246,821.27/3,081.76
  6. Step 6: Final answer
    x = 3,649.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.