Home / 3,629.92-5,449.72-2,151.88

Finding the Fourth Proportional to 3,629.92, 5,449.72 and 2,151.88

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Solution

The fourth proportional to 3,629.92, 5,449.72 and 2,151.88 is: 3,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.92 : 5,449.72 = 2,151.88 : x
  2. Step 2: Convert to fraction form
    3,629.92/5,449.72 = 2,151.88/x
  3. Step 3: Cross multiply
    3,629.92x = 5,449.72 × 2,151.88
  4. Step 4: Simplify right side
    3,629.92x = 11,727,143.47
  5. Step 5: Solve for x
    x = 11,727,143.47/3,629.92
  6. Step 6: Final answer
    x = 3,230.69

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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.