Home / 7,819.98-11,729.97-2,629.50

Finding the Fourth Proportional to 7,819.98, 11,729.97 and 2,629.50

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Solution

The fourth proportional to 7,819.98, 11,729.97 and 2,629.50 is: 3,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.98 : 11,729.97 = 2,629.50 : x
  2. Step 2: Convert to fraction form
    7,819.98/11,729.97 = 2,629.50/x
  3. Step 3: Cross multiply
    7,819.98x = 11,729.97 × 2,629.50
  4. Step 4: Simplify right side
    7,819.98x = 30,843,956.12
  5. Step 5: Solve for x
    x = 30,843,956.12/7,819.98
  6. Step 6: Final answer
    x = 3,944.25

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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.