Home / 4,921.33-6,791.20-2,796.81

Finding the Fourth Proportional to 4,921.33, 6,791.20 and 2,796.81

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Solution

The fourth proportional to 4,921.33, 6,791.20 and 2,796.81 is: 3,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.33 : 6,791.20 = 2,796.81 : x
  2. Step 2: Convert to fraction form
    4,921.33/6,791.20 = 2,796.81/x
  3. Step 3: Cross multiply
    4,921.33x = 6,791.20 × 2,796.81
  4. Step 4: Simplify right side
    4,921.33x = 18,993,679.35
  5. Step 5: Solve for x
    x = 18,993,679.35/4,921.33
  6. Step 6: Final answer
    x = 3,859.46

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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.