Home / 7,961.70-11,944.32-2,625.12

Finding the Fourth Proportional to 7,961.70, 11,944.32 and 2,625.12

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Solution

The fourth proportional to 7,961.70, 11,944.32 and 2,625.12 is: 3,938.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.70 : 11,944.32 = 2,625.12 : x
  2. Step 2: Convert to fraction form
    7,961.70/11,944.32 = 2,625.12/x
  3. Step 3: Cross multiply
    7,961.70x = 11,944.32 × 2,625.12
  4. Step 4: Simplify right side
    7,961.70x = 31,355,273.32
  5. Step 5: Solve for x
    x = 31,355,273.32/7,961.70
  6. Step 6: Final answer
    x = 3,938.26

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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.