Home / 5,851.43-8,074.85-3,198.78

Finding the Fourth Proportional to 5,851.43, 8,074.85 and 3,198.78

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Solution

The fourth proportional to 5,851.43, 8,074.85 and 3,198.78 is: 4,414.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,851.43 : 8,074.85 = 3,198.78 : x
  2. Step 2: Convert to fraction form
    5,851.43/8,074.85 = 3,198.78/x
  3. Step 3: Cross multiply
    5,851.43x = 8,074.85 × 3,198.78
  4. Step 4: Simplify right side
    5,851.43x = 25,829,668.68
  5. Step 5: Solve for x
    x = 25,829,668.68/5,851.43
  6. Step 6: Final answer
    x = 4,414.25

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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.