Home / 7,961.81-11,944.19-2,625.28

Finding the Fourth Proportional to 7,961.81, 11,944.19 and 2,625.28

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Solution

The fourth proportional to 7,961.81, 11,944.19 and 2,625.28 is: 3,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.81 : 11,944.19 = 2,625.28 : x
  2. Step 2: Convert to fraction form
    7,961.81/11,944.19 = 2,625.28/x
  3. Step 3: Cross multiply
    7,961.81x = 11,944.19 × 2,625.28
  4. Step 4: Simplify right side
    7,961.81x = 31,356,819.83
  5. Step 5: Solve for x
    x = 31,356,819.83/7,961.81
  6. Step 6: Final answer
    x = 3,938.41

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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.