Home / 3,245.92-4,479.84-2,721.76

Finding the Fourth Proportional to 3,245.92, 4,479.84 and 2,721.76

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Solution

The fourth proportional to 3,245.92, 4,479.84 and 2,721.76 is: 3,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.92 : 4,479.84 = 2,721.76 : x
  2. Step 2: Convert to fraction form
    3,245.92/4,479.84 = 2,721.76/x
  3. Step 3: Cross multiply
    3,245.92x = 4,479.84 × 2,721.76
  4. Step 4: Simplify right side
    3,245.92x = 12,193,049.32
  5. Step 5: Solve for x
    x = 12,193,049.32/3,245.92
  6. Step 6: Final answer
    x = 3,756.42

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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.