Home / 4,917.80-6,786.49-2,679.77

Finding the Fourth Proportional to 4,917.80, 6,786.49 and 2,679.77

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Solution

The fourth proportional to 4,917.80, 6,786.49 and 2,679.77 is: 3,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.80 : 6,786.49 = 2,679.77 : x
  2. Step 2: Convert to fraction form
    4,917.80/6,786.49 = 2,679.77/x
  3. Step 3: Cross multiply
    4,917.80x = 6,786.49 × 2,679.77
  4. Step 4: Simplify right side
    4,917.80x = 18,186,232.31
  5. Step 5: Solve for x
    x = 18,186,232.31/4,917.80
  6. Step 6: Final answer
    x = 3,698.04

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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.