Home / 3,940.14-5,910.33-1,992.54

Finding the Fourth Proportional to 3,940.14, 5,910.33 and 1,992.54

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Solution

The fourth proportional to 3,940.14, 5,910.33 and 1,992.54 is: 2,988.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.14 : 5,910.33 = 1,992.54 : x
  2. Step 2: Convert to fraction form
    3,940.14/5,910.33 = 1,992.54/x
  3. Step 3: Cross multiply
    3,940.14x = 5,910.33 × 1,992.54
  4. Step 4: Simplify right side
    3,940.14x = 11,776,568.94
  5. Step 5: Solve for x
    x = 11,776,568.94/3,940.14
  6. Step 6: Final answer
    x = 2,988.87

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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.