Home / 3,896.16-5,375.76-2,217.18

Finding the Fourth Proportional to 3,896.16, 5,375.76 and 2,217.18

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Solution

The fourth proportional to 3,896.16, 5,375.76 and 2,217.18 is: 3,059.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.16 : 5,375.76 = 2,217.18 : x
  2. Step 2: Convert to fraction form
    3,896.16/5,375.76 = 2,217.18/x
  3. Step 3: Cross multiply
    3,896.16x = 5,375.76 × 2,217.18
  4. Step 4: Simplify right side
    3,896.16x = 11,919,027.56
  5. Step 5: Solve for x
    x = 11,919,027.56/3,896.16
  6. Step 6: Final answer
    x = 3,059.17

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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.