Home / 3,818.09-5,727.70-1,185.86

Finding the Fourth Proportional to 3,818.09, 5,727.70 and 1,185.86

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Solution

The fourth proportional to 3,818.09, 5,727.70 and 1,185.86 is: 1,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.09 : 5,727.70 = 1,185.86 : x
  2. Step 2: Convert to fraction form
    3,818.09/5,727.70 = 1,185.86/x
  3. Step 3: Cross multiply
    3,818.09x = 5,727.70 × 1,185.86
  4. Step 4: Simplify right side
    3,818.09x = 6,792,227.23
  5. Step 5: Solve for x
    x = 6,792,227.23/3,818.09
  6. Step 6: Final answer
    x = 1,778.96

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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.