Home / 3,198.15-4,788.26-2,415.69

Finding the Fourth Proportional to 3,198.15, 4,788.26 and 2,415.69

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Solution

The fourth proportional to 3,198.15, 4,788.26 and 2,415.69 is: 3,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.15 : 4,788.26 = 2,415.69 : x
  2. Step 2: Convert to fraction form
    3,198.15/4,788.26 = 2,415.69/x
  3. Step 3: Cross multiply
    3,198.15x = 4,788.26 × 2,415.69
  4. Step 4: Simplify right side
    3,198.15x = 11,566,927.80
  5. Step 5: Solve for x
    x = 11,566,927.80/3,198.15
  6. Step 6: Final answer
    x = 3,616.76

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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.