Home / 7,839.64-11,759.05-1,995.90

Finding the Fourth Proportional to 7,839.64, 11,759.05 and 1,995.90

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Solution

The fourth proportional to 7,839.64, 11,759.05 and 1,995.90 is: 2,993.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.64 : 11,759.05 = 1,995.90 : x
  2. Step 2: Convert to fraction form
    7,839.64/11,759.05 = 1,995.90/x
  3. Step 3: Cross multiply
    7,839.64x = 11,759.05 × 1,995.90
  4. Step 4: Simplify right side
    7,839.64x = 23,469,887.90
  5. Step 5: Solve for x
    x = 23,469,887.90/7,839.64
  6. Step 6: Final answer
    x = 2,993.75

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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.