Home / 2,778.66-4,164.48-1,791.14

Finding the Fourth Proportional to 2,778.66, 4,164.48 and 1,791.14

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Solution

The fourth proportional to 2,778.66, 4,164.48 and 1,791.14 is: 2,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.66 : 4,164.48 = 1,791.14 : x
  2. Step 2: Convert to fraction form
    2,778.66/4,164.48 = 1,791.14/x
  3. Step 3: Cross multiply
    2,778.66x = 4,164.48 × 1,791.14
  4. Step 4: Simplify right side
    2,778.66x = 7,459,145.88
  5. Step 5: Solve for x
    x = 7,459,145.88/2,778.66
  6. Step 6: Final answer
    x = 2,684.44

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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.