Home / 3,936.76-5,427.68-3,226

Finding the Fourth Proportional to 3,936.76, 5,427.68 and 3,226

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Solution

The fourth proportional to 3,936.76, 5,427.68 and 3,226 is: 4,447.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.76 : 5,427.68 = 3,226 : x
  2. Step 2: Convert to fraction form
    3,936.76/5,427.68 = 3,226/x
  3. Step 3: Cross multiply
    3,936.76x = 5,427.68 × 3,226
  4. Step 4: Simplify right side
    3,936.76x = 17,509,695.68
  5. Step 5: Solve for x
    x = 17,509,695.68/3,936.76
  6. Step 6: Final answer
    x = 4,447.74

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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.