Home / 4,917.97-6,786.62-2,679.80

Finding the Fourth Proportional to 4,917.97, 6,786.62 and 2,679.80

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Solution

The fourth proportional to 4,917.97, 6,786.62 and 2,679.80 is: 3,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.97 : 6,786.62 = 2,679.80 : x
  2. Step 2: Convert to fraction form
    4,917.97/6,786.62 = 2,679.80/x
  3. Step 3: Cross multiply
    4,917.97x = 6,786.62 × 2,679.80
  4. Step 4: Simplify right side
    4,917.97x = 18,186,746.99
  5. Step 5: Solve for x
    x = 18,186,746.99/4,917.97
  6. Step 6: Final answer
    x = 3,698.02

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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.