Home / 3,788.20-5,682.94-2,147.96

Finding the Fourth Proportional to 3,788.20, 5,682.94 and 2,147.96

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Solution

The fourth proportional to 3,788.20, 5,682.94 and 2,147.96 is: 3,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.20 : 5,682.94 = 2,147.96 : x
  2. Step 2: Convert to fraction form
    3,788.20/5,682.94 = 2,147.96/x
  3. Step 3: Cross multiply
    3,788.20x = 5,682.94 × 2,147.96
  4. Step 4: Simplify right side
    3,788.20x = 12,206,727.80
  5. Step 5: Solve for x
    x = 12,206,727.80/3,788.20
  6. Step 6: Final answer
    x = 3,222.30

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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.