Home / 2,211.92-3,052.45-1,217.26

Finding the Fourth Proportional to 2,211.92, 3,052.45 and 1,217.26

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Solution

The fourth proportional to 2,211.92, 3,052.45 and 1,217.26 is: 1,679.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.92 : 3,052.45 = 1,217.26 : x
  2. Step 2: Convert to fraction form
    2,211.92/3,052.45 = 1,217.26/x
  3. Step 3: Cross multiply
    2,211.92x = 3,052.45 × 1,217.26
  4. Step 4: Simplify right side
    2,211.92x = 3,715,625.29
  5. Step 5: Solve for x
    x = 3,715,625.29/2,211.92
  6. Step 6: Final answer
    x = 1,679.82

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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.