Home / 7,173.36-10,757.88-2,789.78

Finding the Fourth Proportional to 7,173.36, 10,757.88 and 2,789.78

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Solution

The fourth proportional to 7,173.36, 10,757.88 and 2,789.78 is: 4,183.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.36 : 10,757.88 = 2,789.78 : x
  2. Step 2: Convert to fraction form
    7,173.36/10,757.88 = 2,789.78/x
  3. Step 3: Cross multiply
    7,173.36x = 10,757.88 × 2,789.78
  4. Step 4: Simplify right side
    7,173.36x = 30,012,064.68
  5. Step 5: Solve for x
    x = 30,012,064.68/7,173.36
  6. Step 6: Final answer
    x = 4,183.82

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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.