Home / 7,961.78-11,941.80-3,282.36

Finding the Fourth Proportional to 7,961.78, 11,941.80 and 3,282.36

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Solution

The fourth proportional to 7,961.78, 11,941.80 and 3,282.36 is: 4,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.78 : 11,941.80 = 3,282.36 : x
  2. Step 2: Convert to fraction form
    7,961.78/11,941.80 = 3,282.36/x
  3. Step 3: Cross multiply
    7,961.78x = 11,941.80 × 3,282.36
  4. Step 4: Simplify right side
    7,961.78x = 39,197,286.65
  5. Step 5: Solve for x
    x = 39,197,286.65/7,961.78
  6. Step 6: Final answer
    x = 4,923.18

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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.