Home / 7,936.80-11,889.14-3,780.83

Finding the Fourth Proportional to 7,936.80, 11,889.14 and 3,780.83

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Solution

The fourth proportional to 7,936.80, 11,889.14 and 3,780.83 is: 5,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.80 : 11,889.14 = 3,780.83 : x
  2. Step 2: Convert to fraction form
    7,936.80/11,889.14 = 3,780.83/x
  3. Step 3: Cross multiply
    7,936.80x = 11,889.14 × 3,780.83
  4. Step 4: Simplify right side
    7,936.80x = 44,950,738.84
  5. Step 5: Solve for x
    x = 44,950,738.84/7,936.80
  6. Step 6: Final answer
    x = 5,663.58

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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.