Home / 3,895.45-5,375.72-2,216.97

Finding the Fourth Proportional to 3,895.45, 5,375.72 and 2,216.97

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Solution

The fourth proportional to 3,895.45, 5,375.72 and 2,216.97 is: 3,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.45 : 5,375.72 = 2,216.97 : x
  2. Step 2: Convert to fraction form
    3,895.45/5,375.72 = 2,216.97/x
  3. Step 3: Cross multiply
    3,895.45x = 5,375.72 × 2,216.97
  4. Step 4: Simplify right side
    3,895.45x = 11,917,815.51
  5. Step 5: Solve for x
    x = 11,917,815.51/3,895.45
  6. Step 6: Final answer
    x = 3,059.42

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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.