Home / 4,786.80-7,183.70-3,142.77

Finding the Fourth Proportional to 4,786.80, 7,183.70 and 3,142.77

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Solution

The fourth proportional to 4,786.80, 7,183.70 and 3,142.77 is: 4,716.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.80 : 7,183.70 = 3,142.77 : x
  2. Step 2: Convert to fraction form
    4,786.80/7,183.70 = 3,142.77/x
  3. Step 3: Cross multiply
    4,786.80x = 7,183.70 × 3,142.77
  4. Step 4: Simplify right side
    4,786.80x = 22,576,716.85
  5. Step 5: Solve for x
    x = 22,576,716.85/4,786.80
  6. Step 6: Final answer
    x = 4,716.45

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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.