Home / 3,144.11-4,338.88-1,965.85

Finding the Fourth Proportional to 3,144.11, 4,338.88 and 1,965.85

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Solution

The fourth proportional to 3,144.11, 4,338.88 and 1,965.85 is: 2,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.11 : 4,338.88 = 1,965.85 : x
  2. Step 2: Convert to fraction form
    3,144.11/4,338.88 = 1,965.85/x
  3. Step 3: Cross multiply
    3,144.11x = 4,338.88 × 1,965.85
  4. Step 4: Simplify right side
    3,144.11x = 8,529,571.49
  5. Step 5: Solve for x
    x = 8,529,571.49/3,144.11
  6. Step 6: Final answer
    x = 2,712.88

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1.5x scale

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.