Home / 6,786.82-10,179.74-2,106.70

Finding the Fourth Proportional to 6,786.82, 10,179.74 and 2,106.70

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Solution

The fourth proportional to 6,786.82, 10,179.74 and 2,106.70 is: 3,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.82 : 10,179.74 = 2,106.70 : x
  2. Step 2: Convert to fraction form
    6,786.82/10,179.74 = 2,106.70/x
  3. Step 3: Cross multiply
    6,786.82x = 10,179.74 × 2,106.70
  4. Step 4: Simplify right side
    6,786.82x = 21,445,658.26
  5. Step 5: Solve for x
    x = 21,445,658.26/6,786.82
  6. Step 6: Final answer
    x = 3,159.90

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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.