Home / 4,921.20-6,791.23-2,826

Finding the Fourth Proportional to 4,921.20, 6,791.23 and 2,826

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Solution

The fourth proportional to 4,921.20, 6,791.23 and 2,826 is: 3,899.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.20 : 6,791.23 = 2,826 : x
  2. Step 2: Convert to fraction form
    4,921.20/6,791.23 = 2,826/x
  3. Step 3: Cross multiply
    4,921.20x = 6,791.23 × 2,826
  4. Step 4: Simplify right side
    4,921.20x = 19,192,015.98
  5. Step 5: Solve for x
    x = 19,192,015.98/4,921.20
  6. Step 6: Final answer
    x = 3,899.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.