Home / 2,217.42-3,328.19-1,122.56

Finding the Fourth Proportional to 2,217.42, 3,328.19 and 1,122.56

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Solution

The fourth proportional to 2,217.42, 3,328.19 and 1,122.56 is: 1,684.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.42 : 3,328.19 = 1,122.56 : x
  2. Step 2: Convert to fraction form
    2,217.42/3,328.19 = 1,122.56/x
  3. Step 3: Cross multiply
    2,217.42x = 3,328.19 × 1,122.56
  4. Step 4: Simplify right side
    2,217.42x = 3,736,092.97
  5. Step 5: Solve for x
    x = 3,736,092.97/2,217.42
  6. Step 6: Final answer
    x = 1,684.88

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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.