Home / 7,976.47-11,964.70-3,291.33

Finding the Fourth Proportional to 7,976.47, 11,964.70 and 3,291.33

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Solution

The fourth proportional to 7,976.47, 11,964.70 and 3,291.33 is: 4,936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.47 : 11,964.70 = 3,291.33 : x
  2. Step 2: Convert to fraction form
    7,976.47/11,964.70 = 3,291.33/x
  3. Step 3: Cross multiply
    7,976.47x = 11,964.70 × 3,291.33
  4. Step 4: Simplify right side
    7,976.47x = 39,379,744.69
  5. Step 5: Solve for x
    x = 39,379,744.69/7,976.47
  6. Step 6: Final answer
    x = 4,936.99

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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.