Home / 7,179.45-10,764.77-2,791.80

Finding the Fourth Proportional to 7,179.45, 10,764.77 and 2,791.80

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Solution

The fourth proportional to 7,179.45, 10,764.77 and 2,791.80 is: 4,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.45 : 10,764.77 = 2,791.80 : x
  2. Step 2: Convert to fraction form
    7,179.45/10,764.77 = 2,791.80/x
  3. Step 3: Cross multiply
    7,179.45x = 10,764.77 × 2,791.80
  4. Step 4: Simplify right side
    7,179.45x = 30,053,017.10
  5. Step 5: Solve for x
    x = 30,053,017.10/7,179.45
  6. Step 6: Final answer
    x = 4,185.98

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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.