Home / 7,984.85-11,972.85-3,705.91

Finding the Fourth Proportional to 7,984.85, 11,972.85 and 3,705.91

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Solution

The fourth proportional to 7,984.85, 11,972.85 and 3,705.91 is: 5,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.85 : 11,972.85 = 3,705.91 : x
  2. Step 2: Convert to fraction form
    7,984.85/11,972.85 = 3,705.91/x
  3. Step 3: Cross multiply
    7,984.85x = 11,972.85 × 3,705.91
  4. Step 4: Simplify right side
    7,984.85x = 44,370,304.54
  5. Step 5: Solve for x
    x = 44,370,304.54/7,984.85
  6. Step 6: Final answer
    x = 5,556.81

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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.