Home / 4,976.19-6,869.48-2,879.91

Finding the Fourth Proportional to 4,976.19, 6,869.48 and 2,879.91

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Solution

The fourth proportional to 4,976.19, 6,869.48 and 2,879.91 is: 3,975.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.19 : 6,869.48 = 2,879.91 : x
  2. Step 2: Convert to fraction form
    4,976.19/6,869.48 = 2,879.91/x
  3. Step 3: Cross multiply
    4,976.19x = 6,869.48 × 2,879.91
  4. Step 4: Simplify right side
    4,976.19x = 19,783,469.75
  5. Step 5: Solve for x
    x = 19,783,469.75/4,976.19
  6. Step 6: Final answer
    x = 3,975.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.