Home / 3,486.71-5,227.78-1,265.12

Finding the Fourth Proportional to 3,486.71, 5,227.78 and 1,265.12

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Solution

The fourth proportional to 3,486.71, 5,227.78 and 1,265.12 is: 1,896.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.71 : 5,227.78 = 1,265.12 : x
  2. Step 2: Convert to fraction form
    3,486.71/5,227.78 = 1,265.12/x
  3. Step 3: Cross multiply
    3,486.71x = 5,227.78 × 1,265.12
  4. Step 4: Simplify right side
    3,486.71x = 6,613,761.73
  5. Step 5: Solve for x
    x = 6,613,761.73/3,486.71
  6. Step 6: Final answer
    x = 1,896.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.