Home / 2,811.86-4,217.81-1,844.09

Finding the Fourth Proportional to 2,811.86, 4,217.81 and 1,844.09

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Solution

The fourth proportional to 2,811.86, 4,217.81 and 1,844.09 is: 2,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.86 : 4,217.81 = 1,844.09 : x
  2. Step 2: Convert to fraction form
    2,811.86/4,217.81 = 1,844.09/x
  3. Step 3: Cross multiply
    2,811.86x = 4,217.81 × 1,844.09
  4. Step 4: Simplify right side
    2,811.86x = 7,777,990.93
  5. Step 5: Solve for x
    x = 7,777,990.93/2,811.86
  6. Step 6: Final answer
    x = 2,766.14

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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.