Home / 4,920.90-6,791.42-2,797.09

Finding the Fourth Proportional to 4,920.90, 6,791.42 and 2,797.09

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Solution

The fourth proportional to 4,920.90, 6,791.42 and 2,797.09 is: 3,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.90 : 6,791.42 = 2,797.09 : x
  2. Step 2: Convert to fraction form
    4,920.90/6,791.42 = 2,797.09/x
  3. Step 3: Cross multiply
    4,920.90x = 6,791.42 × 2,797.09
  4. Step 4: Simplify right side
    4,920.90x = 18,996,212.97
  5. Step 5: Solve for x
    x = 18,996,212.97/4,920.90
  6. Step 6: Final answer
    x = 3,860.31

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1.5x scale

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.