Home / 2,766.69-4,151.19-1,122.81

Finding the Fourth Proportional to 2,766.69, 4,151.19 and 1,122.81

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Solution

The fourth proportional to 2,766.69, 4,151.19 and 1,122.81 is: 1,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.69 : 4,151.19 = 1,122.81 : x
  2. Step 2: Convert to fraction form
    2,766.69/4,151.19 = 1,122.81/x
  3. Step 3: Cross multiply
    2,766.69x = 4,151.19 × 1,122.81
  4. Step 4: Simplify right side
    2,766.69x = 4,660,997.64
  5. Step 5: Solve for x
    x = 4,660,997.64/2,766.69
  6. Step 6: Final answer
    x = 1,684.68

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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.