Home / 6,781.24-10,169.97-2,101.60

Finding the Fourth Proportional to 6,781.24, 10,169.97 and 2,101.60

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Solution

The fourth proportional to 6,781.24, 10,169.97 and 2,101.60 is: 3,151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.24 : 10,169.97 = 2,101.60 : x
  2. Step 2: Convert to fraction form
    6,781.24/10,169.97 = 2,101.60/x
  3. Step 3: Cross multiply
    6,781.24x = 10,169.97 × 2,101.60
  4. Step 4: Simplify right side
    6,781.24x = 21,373,208.95
  5. Step 5: Solve for x
    x = 21,373,208.95/6,781.24
  6. Step 6: Final answer
    x = 3,151.81

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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.