Home / 3,818.11-5,727.98-1,185.56

Finding the Fourth Proportional to 3,818.11, 5,727.98 and 1,185.56

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Solution

The fourth proportional to 3,818.11, 5,727.98 and 1,185.56 is: 1,778.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.11 : 5,727.98 = 1,185.56 : x
  2. Step 2: Convert to fraction form
    3,818.11/5,727.98 = 1,185.56/x
  3. Step 3: Cross multiply
    3,818.11x = 5,727.98 × 1,185.56
  4. Step 4: Simplify right side
    3,818.11x = 6,790,863.97
  5. Step 5: Solve for x
    x = 6,790,863.97/3,818.11
  6. Step 6: Final answer
    x = 1,778.60

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1.5x scale

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.