Home / 3,226.92-4,841.40-1,278

Finding the Fourth Proportional to 3,226.92, 4,841.40 and 1,278

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Solution

The fourth proportional to 3,226.92, 4,841.40 and 1,278 is: 1,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.92 : 4,841.40 = 1,278 : x
  2. Step 2: Convert to fraction form
    3,226.92/4,841.40 = 1,278/x
  3. Step 3: Cross multiply
    3,226.92x = 4,841.40 × 1,278
  4. Step 4: Simplify right side
    3,226.92x = 6,187,309.20
  5. Step 5: Solve for x
    x = 6,187,309.20/3,226.92
  6. Step 6: Final answer
    x = 1,917.40

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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.