Home / 7,963.46-11,945.33-2,120

Finding the Fourth Proportional to 7,963.46, 11,945.33 and 2,120

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Solution

The fourth proportional to 7,963.46, 11,945.33 and 2,120 is: 3,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.46 : 11,945.33 = 2,120 : x
  2. Step 2: Convert to fraction form
    7,963.46/11,945.33 = 2,120/x
  3. Step 3: Cross multiply
    7,963.46x = 11,945.33 × 2,120
  4. Step 4: Simplify right side
    7,963.46x = 25,324,089
  5. Step 5: Solve for x
    x = 25,324,089/7,963.46
  6. Step 6: Final answer
    x = 3,180.04

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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.