Home / 3,868.75-5,338.97-2,375.82

Finding the Fourth Proportional to 3,868.75, 5,338.97 and 2,375.82

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Solution

The fourth proportional to 3,868.75, 5,338.97 and 2,375.82 is: 3,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.75 : 5,338.97 = 2,375.82 : x
  2. Step 2: Convert to fraction form
    3,868.75/5,338.97 = 2,375.82/x
  3. Step 3: Cross multiply
    3,868.75x = 5,338.97 × 2,375.82
  4. Step 4: Simplify right side
    3,868.75x = 12,684,431.71
  5. Step 5: Solve for x
    x = 12,684,431.71/3,868.75
  6. Step 6: Final answer
    x = 3,278.69

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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.