Home / 4,940.81-7,408.67-1,819.73

Finding the Fourth Proportional to 4,940.81, 7,408.67 and 1,819.73

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Solution

The fourth proportional to 4,940.81, 7,408.67 and 1,819.73 is: 2,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.81 : 7,408.67 = 1,819.73 : x
  2. Step 2: Convert to fraction form
    4,940.81/7,408.67 = 1,819.73/x
  3. Step 3: Cross multiply
    4,940.81x = 7,408.67 × 1,819.73
  4. Step 4: Simplify right side
    4,940.81x = 13,481,732.92
  5. Step 5: Solve for x
    x = 13,481,732.92/4,940.81
  6. Step 6: Final answer
    x = 2,728.65

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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.