Home / 3,579.60-4,941.78-2,163.54

Finding the Fourth Proportional to 3,579.60, 4,941.78 and 2,163.54

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Solution

The fourth proportional to 3,579.60, 4,941.78 and 2,163.54 is: 2,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.60 : 4,941.78 = 2,163.54 : x
  2. Step 2: Convert to fraction form
    3,579.60/4,941.78 = 2,163.54/x
  3. Step 3: Cross multiply
    3,579.60x = 4,941.78 × 2,163.54
  4. Step 4: Simplify right side
    3,579.60x = 10,691,738.70
  5. Step 5: Solve for x
    x = 10,691,738.70/3,579.60
  6. Step 6: Final answer
    x = 2,986.85

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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.