Home / 3,226.61-4,839.95-1,278.83

Finding the Fourth Proportional to 3,226.61, 4,839.95 and 1,278.83

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Solution

The fourth proportional to 3,226.61, 4,839.95 and 1,278.83 is: 1,918.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.61 : 4,839.95 = 1,278.83 : x
  2. Step 2: Convert to fraction form
    3,226.61/4,839.95 = 1,278.83/x
  3. Step 3: Cross multiply
    3,226.61x = 4,839.95 × 1,278.83
  4. Step 4: Simplify right side
    3,226.61x = 6,189,488.56
  5. Step 5: Solve for x
    x = 6,189,488.56/3,226.61
  6. Step 6: Final answer
    x = 1,918.26

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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.