Home / 3,899.68-5,851.92-2,169.52

Finding the Fourth Proportional to 3,899.68, 5,851.92 and 2,169.52

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Solution

The fourth proportional to 3,899.68, 5,851.92 and 2,169.52 is: 3,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.68 : 5,851.92 = 2,169.52 : x
  2. Step 2: Convert to fraction form
    3,899.68/5,851.92 = 2,169.52/x
  3. Step 3: Cross multiply
    3,899.68x = 5,851.92 × 2,169.52
  4. Step 4: Simplify right side
    3,899.68x = 12,695,857.48
  5. Step 5: Solve for x
    x = 12,695,857.48/3,899.68
  6. Step 6: Final answer
    x = 3,255.62

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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.