Home / 6,379.09-9,560.98-2,680

Finding the Fourth Proportional to 6,379.09, 9,560.98 and 2,680

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Solution

The fourth proportional to 6,379.09, 9,560.98 and 2,680 is: 4,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.09 : 9,560.98 = 2,680 : x
  2. Step 2: Convert to fraction form
    6,379.09/9,560.98 = 2,680/x
  3. Step 3: Cross multiply
    6,379.09x = 9,560.98 × 2,680
  4. Step 4: Simplify right side
    6,379.09x = 25,623,426.40
  5. Step 5: Solve for x
    x = 25,623,426.40/6,379.09
  6. Step 6: Final answer
    x = 4,016.78

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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.