Home / 4,919.97-6,788.78-2,766.09

Finding the Fourth Proportional to 4,919.97, 6,788.78 and 2,766.09

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Solution

The fourth proportional to 4,919.97, 6,788.78 and 2,766.09 is: 3,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.97 : 6,788.78 = 2,766.09 : x
  2. Step 2: Convert to fraction form
    4,919.97/6,788.78 = 2,766.09/x
  3. Step 3: Cross multiply
    4,919.97x = 6,788.78 × 2,766.09
  4. Step 4: Simplify right side
    4,919.97x = 18,778,362.64
  5. Step 5: Solve for x
    x = 18,778,362.64/4,919.97
  6. Step 6: Final answer
    x = 3,816.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.