Home / 2,879.30-4,318.94-1,234.78

Finding the Fourth Proportional to 2,879.30, 4,318.94 and 1,234.78

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Solution

The fourth proportional to 2,879.30, 4,318.94 and 1,234.78 is: 1,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.30 : 4,318.94 = 1,234.78 : x
  2. Step 2: Convert to fraction form
    2,879.30/4,318.94 = 1,234.78/x
  3. Step 3: Cross multiply
    2,879.30x = 4,318.94 × 1,234.78
  4. Step 4: Simplify right side
    2,879.30x = 5,332,940.73
  5. Step 5: Solve for x
    x = 5,332,940.73/2,879.30
  6. Step 6: Final answer
    x = 1,852.17

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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.