Home / 6,781.86-10,169.75-2,618.66

Finding the Fourth Proportional to 6,781.86, 10,169.75 and 2,618.66

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Solution

The fourth proportional to 6,781.86, 10,169.75 and 2,618.66 is: 3,926.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.86 : 10,169.75 = 2,618.66 : x
  2. Step 2: Convert to fraction form
    6,781.86/10,169.75 = 2,618.66/x
  3. Step 3: Cross multiply
    6,781.86x = 10,169.75 × 2,618.66
  4. Step 4: Simplify right side
    6,781.86x = 26,631,149.51
  5. Step 5: Solve for x
    x = 26,631,149.51/6,781.86
  6. Step 6: Final answer
    x = 3,926.82

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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.