Home / 2,778.23-4,163.74-2,079.41

Finding the Fourth Proportional to 2,778.23, 4,163.74 and 2,079.41

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Solution

The fourth proportional to 2,778.23, 4,163.74 and 2,079.41 is: 3,116.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.23 : 4,163.74 = 2,079.41 : x
  2. Step 2: Convert to fraction form
    2,778.23/4,163.74 = 2,079.41/x
  3. Step 3: Cross multiply
    2,778.23x = 4,163.74 × 2,079.41
  4. Step 4: Simplify right side
    2,778.23x = 8,658,091.38
  5. Step 5: Solve for x
    x = 8,658,091.38/2,778.23
  6. Step 6: Final answer
    x = 3,116.41

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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.