Home / 2,212.20-3,049.38-1,512.36

Finding the Fourth Proportional to 2,212.20, 3,049.38 and 1,512.36

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Solution

The fourth proportional to 2,212.20, 3,049.38 and 1,512.36 is: 2,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.20 : 3,049.38 = 1,512.36 : x
  2. Step 2: Convert to fraction form
    2,212.20/3,049.38 = 1,512.36/x
  3. Step 3: Cross multiply
    2,212.20x = 3,049.38 × 1,512.36
  4. Step 4: Simplify right side
    2,212.20x = 4,611,760.34
  5. Step 5: Solve for x
    x = 4,611,760.34/2,212.20
  6. Step 6: Final answer
    x = 2,084.69

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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.