Home / 2,791.90-4,179.21-2,094.70

Finding the Fourth Proportional to 2,791.90, 4,179.21 and 2,094.70

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Solution

The fourth proportional to 2,791.90, 4,179.21 and 2,094.70 is: 3,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.90 : 4,179.21 = 2,094.70 : x
  2. Step 2: Convert to fraction form
    2,791.90/4,179.21 = 2,094.70/x
  3. Step 3: Cross multiply
    2,791.90x = 4,179.21 × 2,094.70
  4. Step 4: Simplify right side
    2,791.90x = 8,754,191.19
  5. Step 5: Solve for x
    x = 8,754,191.19/2,791.90
  6. Step 6: Final answer
    x = 3,135.57

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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.