Home / 4,079.68-6,118.71-1,998.79

Finding the Fourth Proportional to 4,079.68, 6,118.71 and 1,998.79

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Solution

The fourth proportional to 4,079.68, 6,118.71 and 1,998.79 is: 2,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.68 : 6,118.71 = 1,998.79 : x
  2. Step 2: Convert to fraction form
    4,079.68/6,118.71 = 1,998.79/x
  3. Step 3: Cross multiply
    4,079.68x = 6,118.71 × 1,998.79
  4. Step 4: Simplify right side
    4,079.68x = 12,229,993.57
  5. Step 5: Solve for x
    x = 12,229,993.57/4,079.68
  6. Step 6: Final answer
    x = 2,997.78

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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.