Home / 7,919.88-11,882.70-3,761.16

Finding the Fourth Proportional to 7,919.88, 11,882.70 and 3,761.16

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Solution

The fourth proportional to 7,919.88, 11,882.70 and 3,761.16 is: 5,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.88 : 11,882.70 = 3,761.16 : x
  2. Step 2: Convert to fraction form
    7,919.88/11,882.70 = 3,761.16/x
  3. Step 3: Cross multiply
    7,919.88x = 11,882.70 × 3,761.16
  4. Step 4: Simplify right side
    7,919.88x = 44,692,735.93
  5. Step 5: Solve for x
    x = 44,692,735.93/7,919.88
  6. Step 6: Final answer
    x = 5,643.11

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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.