Home / 3,896.68-5,376.08-2,217.66

Finding the Fourth Proportional to 3,896.68, 5,376.08 and 2,217.66

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Solution

The fourth proportional to 3,896.68, 5,376.08 and 2,217.66 is: 3,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.68 : 5,376.08 = 2,217.66 : x
  2. Step 2: Convert to fraction form
    3,896.68/5,376.08 = 2,217.66/x
  3. Step 3: Cross multiply
    3,896.68x = 5,376.08 × 2,217.66
  4. Step 4: Simplify right side
    3,896.68x = 11,922,318.75
  5. Step 5: Solve for x
    x = 11,922,318.75/3,896.68
  6. Step 6: Final answer
    x = 3,059.61

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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.