Home / 3,983.81-5,974.92-3,786.24

Finding the Fourth Proportional to 3,983.81, 5,974.92 and 3,786.24

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Solution

The fourth proportional to 3,983.81, 5,974.92 and 3,786.24 is: 5,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.81 : 5,974.92 = 3,786.24 : x
  2. Step 2: Convert to fraction form
    3,983.81/5,974.92 = 3,786.24/x
  3. Step 3: Cross multiply
    3,983.81x = 5,974.92 × 3,786.24
  4. Step 4: Simplify right side
    3,983.81x = 22,622,481.10
  5. Step 5: Solve for x
    x = 22,622,481.10/3,983.81
  6. Step 6: Final answer
    x = 5,678.61

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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.