Home / 3,479.97-5,219.92-2,790.96

Finding the Fourth Proportional to 3,479.97, 5,219.92 and 2,790.96

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Solution

The fourth proportional to 3,479.97, 5,219.92 and 2,790.96 is: 4,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.97 : 5,219.92 = 2,790.96 : x
  2. Step 2: Convert to fraction form
    3,479.97/5,219.92 = 2,790.96/x
  3. Step 3: Cross multiply
    3,479.97x = 5,219.92 × 2,790.96
  4. Step 4: Simplify right side
    3,479.97x = 14,568,587.92
  5. Step 5: Solve for x
    x = 14,568,587.92/3,479.97
  6. Step 6: Final answer
    x = 4,186.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.