Home / 3,812.20-5,713.98-2,422.12

Finding the Fourth Proportional to 3,812.20, 5,713.98 and 2,422.12

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Solution

The fourth proportional to 3,812.20, 5,713.98 and 2,422.12 is: 3,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.20 : 5,713.98 = 2,422.12 : x
  2. Step 2: Convert to fraction form
    3,812.20/5,713.98 = 2,422.12/x
  3. Step 3: Cross multiply
    3,812.20x = 5,713.98 × 2,422.12
  4. Step 4: Simplify right side
    3,812.20x = 13,839,945.24
  5. Step 5: Solve for x
    x = 13,839,945.24/3,812.20
  6. Step 6: Final answer
    x = 3,630.44

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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.