Home / 3,896.82-5,382.18-3,580.92

Finding the Fourth Proportional to 3,896.82, 5,382.18 and 3,580.92

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Solution

The fourth proportional to 3,896.82, 5,382.18 and 3,580.92 is: 4,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.82 : 5,382.18 = 3,580.92 : x
  2. Step 2: Convert to fraction form
    3,896.82/5,382.18 = 3,580.92/x
  3. Step 3: Cross multiply
    3,896.82x = 5,382.18 × 3,580.92
  4. Step 4: Simplify right side
    3,896.82x = 19,273,156.01
  5. Step 5: Solve for x
    x = 19,273,156.01/3,896.82
  6. Step 6: Final answer
    x = 4,945.87

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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.