Home / 3,982.23-5,974.20-1,208.61

Finding the Fourth Proportional to 3,982.23, 5,974.20 and 1,208.61

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Solution

The fourth proportional to 3,982.23, 5,974.20 and 1,208.61 is: 1,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.23 : 5,974.20 = 1,208.61 : x
  2. Step 2: Convert to fraction form
    3,982.23/5,974.20 = 1,208.61/x
  3. Step 3: Cross multiply
    3,982.23x = 5,974.20 × 1,208.61
  4. Step 4: Simplify right side
    3,982.23x = 7,220,477.86
  5. Step 5: Solve for x
    x = 7,220,477.86/3,982.23
  6. Step 6: Final answer
    x = 1,813.17

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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.