Home / 1,228.62-1,844.79-1,176.78

Finding the Fourth Proportional to 1,228.62, 1,844.79 and 1,176.78

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Solution

The fourth proportional to 1,228.62, 1,844.79 and 1,176.78 is: 1,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.62 : 1,844.79 = 1,176.78 : x
  2. Step 2: Convert to fraction form
    1,228.62/1,844.79 = 1,176.78/x
  3. Step 3: Cross multiply
    1,228.62x = 1,844.79 × 1,176.78
  4. Step 4: Simplify right side
    1,228.62x = 2,170,911.98
  5. Step 5: Solve for x
    x = 2,170,911.98/1,228.62
  6. Step 6: Final answer
    x = 1,766.95

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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.