Home / 3,187.96-4,399.11-2,008.80

Finding the Fourth Proportional to 3,187.96, 4,399.11 and 2,008.80

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Solution

The fourth proportional to 3,187.96, 4,399.11 and 2,008.80 is: 2,771.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.96 : 4,399.11 = 2,008.80 : x
  2. Step 2: Convert to fraction form
    3,187.96/4,399.11 = 2,008.80/x
  3. Step 3: Cross multiply
    3,187.96x = 4,399.11 × 2,008.80
  4. Step 4: Simplify right side
    3,187.96x = 8,836,932.17
  5. Step 5: Solve for x
    x = 8,836,932.17/3,187.96
  6. Step 6: Final answer
    x = 2,771.97

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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.