Home / 3,896.05-5,375.45-2,217.41

Finding the Fourth Proportional to 3,896.05, 5,375.45 and 2,217.41

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Solution

The fourth proportional to 3,896.05, 5,375.45 and 2,217.41 is: 3,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.05 : 5,375.45 = 2,217.41 : x
  2. Step 2: Convert to fraction form
    3,896.05/5,375.45 = 2,217.41/x
  3. Step 3: Cross multiply
    3,896.05x = 5,375.45 × 2,217.41
  4. Step 4: Simplify right side
    3,896.05x = 11,919,562.94
  5. Step 5: Solve for x
    x = 11,919,562.94/3,896.05
  6. Step 6: Final answer
    x = 3,059.40

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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.