Home / 2,212.46-3,053.38-1,217.92

Finding the Fourth Proportional to 2,212.46, 3,053.38 and 1,217.92

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Solution

The fourth proportional to 2,212.46, 3,053.38 and 1,217.92 is: 1,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.46 : 3,053.38 = 1,217.92 : x
  2. Step 2: Convert to fraction form
    2,212.46/3,053.38 = 1,217.92/x
  3. Step 3: Cross multiply
    2,212.46x = 3,053.38 × 1,217.92
  4. Step 4: Simplify right side
    2,212.46x = 3,718,772.57
  5. Step 5: Solve for x
    x = 3,718,772.57/2,212.46
  6. Step 6: Final answer
    x = 1,680.83

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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.