Home / 4,921.90-6,791.99-2,797.13

Finding the Fourth Proportional to 4,921.90, 6,791.99 and 2,797.13

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Solution

The fourth proportional to 4,921.90, 6,791.99 and 2,797.13 is: 3,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.90 : 6,791.99 = 2,797.13 : x
  2. Step 2: Convert to fraction form
    4,921.90/6,791.99 = 2,797.13/x
  3. Step 3: Cross multiply
    4,921.90x = 6,791.99 × 2,797.13
  4. Step 4: Simplify right side
    4,921.90x = 18,998,081.98
  5. Step 5: Solve for x
    x = 18,998,081.98/4,921.90
  6. Step 6: Final answer
    x = 3,859.91

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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.