Home / 5,135.19-7,716.45-2,796.92

Finding the Fourth Proportional to 5,135.19, 7,716.45 and 2,796.92

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Solution

The fourth proportional to 5,135.19, 7,716.45 and 2,796.92 is: 4,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.19 : 7,716.45 = 2,796.92 : x
  2. Step 2: Convert to fraction form
    5,135.19/7,716.45 = 2,796.92/x
  3. Step 3: Cross multiply
    5,135.19x = 7,716.45 × 2,796.92
  4. Step 4: Simplify right side
    5,135.19x = 21,582,293.33
  5. Step 5: Solve for x
    x = 21,582,293.33/5,135.19
  6. Step 6: Final answer
    x = 4,202.82

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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.