Home / 7,414.29-11,121.75-2,220.21

Finding the Fourth Proportional to 7,414.29, 11,121.75 and 2,220.21

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Solution

The fourth proportional to 7,414.29, 11,121.75 and 2,220.21 is: 3,330.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.29 : 11,121.75 = 2,220.21 : x
  2. Step 2: Convert to fraction form
    7,414.29/11,121.75 = 2,220.21/x
  3. Step 3: Cross multiply
    7,414.29x = 11,121.75 × 2,220.21
  4. Step 4: Simplify right side
    7,414.29x = 24,692,620.57
  5. Step 5: Solve for x
    x = 24,692,620.57/7,414.29
  6. Step 6: Final answer
    x = 3,330.41

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Half scale
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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.