Home / 6,786.25-10,176.64-2,105.19

Finding the Fourth Proportional to 6,786.25, 10,176.64 and 2,105.19

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Solution

The fourth proportional to 6,786.25, 10,176.64 and 2,105.19 is: 3,156.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.25 : 10,176.64 = 2,105.19 : x
  2. Step 2: Convert to fraction form
    6,786.25/10,176.64 = 2,105.19/x
  3. Step 3: Cross multiply
    6,786.25x = 10,176.64 × 2,105.19
  4. Step 4: Simplify right side
    6,786.25x = 21,423,755.50
  5. Step 5: Solve for x
    x = 21,423,755.50/6,786.25
  6. Step 6: Final answer
    x = 3,156.94

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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.