Home / 3,144.57-4,340.74-2,812.42

Finding the Fourth Proportional to 3,144.57, 4,340.74 and 2,812.42

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Solution

The fourth proportional to 3,144.57, 4,340.74 and 2,812.42 is: 3,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.57 : 4,340.74 = 2,812.42 : x
  2. Step 2: Convert to fraction form
    3,144.57/4,340.74 = 2,812.42/x
  3. Step 3: Cross multiply
    3,144.57x = 4,340.74 × 2,812.42
  4. Step 4: Simplify right side
    3,144.57x = 12,207,987.66
  5. Step 5: Solve for x
    x = 12,207,987.66/3,144.57
  6. Step 6: Final answer
    x = 3,882.24

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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.