Home / 7,961.66-11,947.28-2,771.18

Finding the Fourth Proportional to 7,961.66, 11,947.28 and 2,771.18

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Solution

The fourth proportional to 7,961.66, 11,947.28 and 2,771.18 is: 4,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.66 : 11,947.28 = 2,771.18 : x
  2. Step 2: Convert to fraction form
    7,961.66/11,947.28 = 2,771.18/x
  3. Step 3: Cross multiply
    7,961.66x = 11,947.28 × 2,771.18
  4. Step 4: Simplify right side
    7,961.66x = 33,108,010.58
  5. Step 5: Solve for x
    x = 33,108,010.58/7,961.66
  6. Step 6: Final answer
    x = 4,158.43

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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.