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Finding the Fourth Proportional to 7,819.11, 11,726.49 and 3,435.48

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Solution

The fourth proportional to 7,819.11, 11,726.49 and 3,435.48 is: 5,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.11 : 11,726.49 = 3,435.48 : x
  2. Step 2: Convert to fraction form
    7,819.11/11,726.49 = 3,435.48/x
  3. Step 3: Cross multiply
    7,819.11x = 11,726.49 × 3,435.48
  4. Step 4: Simplify right side
    7,819.11x = 40,286,121.87
  5. Step 5: Solve for x
    x = 40,286,121.87/7,819.11
  6. Step 6: Final answer
    x = 5,152.26

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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.