Home / 7,738.77-11,610.12-3,581.78

Finding the Fourth Proportional to 7,738.77, 11,610.12 and 3,581.78

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Solution

The fourth proportional to 7,738.77, 11,610.12 and 3,581.78 is: 5,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.77 : 11,610.12 = 3,581.78 : x
  2. Step 2: Convert to fraction form
    7,738.77/11,610.12 = 3,581.78/x
  3. Step 3: Cross multiply
    7,738.77x = 11,610.12 × 3,581.78
  4. Step 4: Simplify right side
    7,738.77x = 41,584,837.56
  5. Step 5: Solve for x
    x = 41,584,837.56/7,738.77
  6. Step 6: Final answer
    x = 5,373.57

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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.