Home / 2,217.46-3,060.18-1,222.78

Finding the Fourth Proportional to 2,217.46, 3,060.18 and 1,222.78

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Solution

The fourth proportional to 2,217.46, 3,060.18 and 1,222.78 is: 1,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.46 : 3,060.18 = 1,222.78 : x
  2. Step 2: Convert to fraction form
    2,217.46/3,060.18 = 1,222.78/x
  3. Step 3: Cross multiply
    2,217.46x = 3,060.18 × 1,222.78
  4. Step 4: Simplify right side
    2,217.46x = 3,741,926.90
  5. Step 5: Solve for x
    x = 3,741,926.90/2,217.46
  6. Step 6: Final answer
    x = 1,687.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.