Home / 7,976.85-11,964.34-2,133.91

Finding the Fourth Proportional to 7,976.85, 11,964.34 and 2,133.91

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Solution

The fourth proportional to 7,976.85, 11,964.34 and 2,133.91 is: 3,200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.85 : 11,964.34 = 2,133.91 : x
  2. Step 2: Convert to fraction form
    7,976.85/11,964.34 = 2,133.91/x
  3. Step 3: Cross multiply
    7,976.85x = 11,964.34 × 2,133.91
  4. Step 4: Simplify right side
    7,976.85x = 25,530,842.39
  5. Step 5: Solve for x
    x = 25,530,842.39/7,976.85
  6. Step 6: Final answer
    x = 3,200.62

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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.