Home / 7,984.80-11,972.01-3,824.70

Finding the Fourth Proportional to 7,984.80, 11,972.01 and 3,824.70

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Solution

The fourth proportional to 7,984.80, 11,972.01 and 3,824.70 is: 5,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.80 : 11,972.01 = 3,824.70 : x
  2. Step 2: Convert to fraction form
    7,984.80/11,972.01 = 3,824.70/x
  3. Step 3: Cross multiply
    7,984.80x = 11,972.01 × 3,824.70
  4. Step 4: Simplify right side
    7,984.80x = 45,789,346.65
  5. Step 5: Solve for x
    x = 45,789,346.65/7,984.80
  6. Step 6: Final answer
    x = 5,734.56

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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.