Home / 7,414.13-11,121.20-2,220

Finding the Fourth Proportional to 7,414.13, 11,121.20 and 2,220

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Solution

The fourth proportional to 7,414.13, 11,121.20 and 2,220 is: 3,330.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.13 : 11,121.20 = 2,220 : x
  2. Step 2: Convert to fraction form
    7,414.13/11,121.20 = 2,220/x
  3. Step 3: Cross multiply
    7,414.13x = 11,121.20 × 2,220
  4. Step 4: Simplify right side
    7,414.13x = 24,689,052.90
  5. Step 5: Solve for x
    x = 24,689,052.90/7,414.13
  6. Step 6: Final answer
    x = 3,330.00

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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.