Home / 3,449.28-5,192.72-3,143.12

Finding the Fourth Proportional to 3,449.28, 5,192.72 and 3,143.12

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Solution

The fourth proportional to 3,449.28, 5,192.72 and 3,143.12 is: 4,731.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.28 : 5,192.72 = 3,143.12 : x
  2. Step 2: Convert to fraction form
    3,449.28/5,192.72 = 3,143.12/x
  3. Step 3: Cross multiply
    3,449.28x = 5,192.72 × 3,143.12
  4. Step 4: Simplify right side
    3,449.28x = 16,321,342.09
  5. Step 5: Solve for x
    x = 16,321,342.09/3,449.28
  6. Step 6: Final answer
    x = 4,731.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.