Home / 4,918.09-6,786.78-2,679.92

Finding the Fourth Proportional to 4,918.09, 6,786.78 and 2,679.92

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Solution

The fourth proportional to 4,918.09, 6,786.78 and 2,679.92 is: 3,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.09 : 6,786.78 = 2,679.92 : x
  2. Step 2: Convert to fraction form
    4,918.09/6,786.78 = 2,679.92/x
  3. Step 3: Cross multiply
    4,918.09x = 6,786.78 × 2,679.92
  4. Step 4: Simplify right side
    4,918.09x = 18,188,027.46
  5. Step 5: Solve for x
    x = 18,188,027.46/4,918.09
  6. Step 6: Final answer
    x = 3,698.19

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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.