Home / 7,170.96-10,758.24-2,789.68

Finding the Fourth Proportional to 7,170.96, 10,758.24 and 2,789.68

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Solution

The fourth proportional to 7,170.96, 10,758.24 and 2,789.68 is: 4,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.96 : 10,758.24 = 2,789.68 : x
  2. Step 2: Convert to fraction form
    7,170.96/10,758.24 = 2,789.68/x
  3. Step 3: Cross multiply
    7,170.96x = 10,758.24 × 2,789.68
  4. Step 4: Simplify right side
    7,170.96x = 30,012,046.96
  5. Step 5: Solve for x
    x = 30,012,046.96/7,170.96
  6. Step 6: Final answer
    x = 4,185.22

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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.