Home / 3,081.76-4,249.20-2,490.46

Finding the Fourth Proportional to 3,081.76, 4,249.20 and 2,490.46

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Solution

The fourth proportional to 3,081.76, 4,249.20 and 2,490.46 is: 3,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.76 : 4,249.20 = 2,490.46 : x
  2. Step 2: Convert to fraction form
    3,081.76/4,249.20 = 2,490.46/x
  3. Step 3: Cross multiply
    3,081.76x = 4,249.20 × 2,490.46
  4. Step 4: Simplify right side
    3,081.76x = 10,582,462.63
  5. Step 5: Solve for x
    x = 10,582,462.63/3,081.76
  6. Step 6: Final answer
    x = 3,433.90

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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.