Home / 7,414.78-11,126.55-2,738.04

Finding the Fourth Proportional to 7,414.78, 11,126.55 and 2,738.04

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Solution

The fourth proportional to 7,414.78, 11,126.55 and 2,738.04 is: 4,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.78 : 11,126.55 = 2,738.04 : x
  2. Step 2: Convert to fraction form
    7,414.78/11,126.55 = 2,738.04/x
  3. Step 3: Cross multiply
    7,414.78x = 11,126.55 × 2,738.04
  4. Step 4: Simplify right side
    7,414.78x = 30,464,938.96
  5. Step 5: Solve for x
    x = 30,464,938.96/7,414.78
  6. Step 6: Final answer
    x = 4,108.68

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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.