Home / 5,135.41-7,698.39-2,791.99

Finding the Fourth Proportional to 5,135.41, 7,698.39 and 2,791.99

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Solution

The fourth proportional to 5,135.41, 7,698.39 and 2,791.99 is: 4,185.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.41 : 7,698.39 = 2,791.99 : x
  2. Step 2: Convert to fraction form
    5,135.41/7,698.39 = 2,791.99/x
  3. Step 3: Cross multiply
    5,135.41x = 7,698.39 × 2,791.99
  4. Step 4: Simplify right side
    5,135.41x = 21,493,827.90
  5. Step 5: Solve for x
    x = 21,493,827.90/5,135.41
  6. Step 6: Final answer
    x = 4,185.42

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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.