Home / 3,818.76-5,727.23-2,790.87

Finding the Fourth Proportional to 3,818.76, 5,727.23 and 2,790.87

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Solution

The fourth proportional to 3,818.76, 5,727.23 and 2,790.87 is: 4,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.76 : 5,727.23 = 2,790.87 : x
  2. Step 2: Convert to fraction form
    3,818.76/5,727.23 = 2,790.87/x
  3. Step 3: Cross multiply
    3,818.76x = 5,727.23 × 2,790.87
  4. Step 4: Simplify right side
    3,818.76x = 15,983,940.44
  5. Step 5: Solve for x
    x = 15,983,940.44/3,818.76
  6. Step 6: Final answer
    x = 4,185.64

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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.