Home / 2,217.43-3,328.19-1,122.57

Finding the Fourth Proportional to 2,217.43, 3,328.19 and 1,122.57

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Solution

The fourth proportional to 2,217.43, 3,328.19 and 1,122.57 is: 1,684.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.43 : 3,328.19 = 1,122.57 : x
  2. Step 2: Convert to fraction form
    2,217.43/3,328.19 = 1,122.57/x
  3. Step 3: Cross multiply
    2,217.43x = 3,328.19 × 1,122.57
  4. Step 4: Simplify right side
    2,217.43x = 3,736,126.25
  5. Step 5: Solve for x
    x = 3,736,126.25/2,217.43
  6. Step 6: Final answer
    x = 1,684.89

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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.