Home / 2,850.68-3,930.36-2,379.24

Finding the Fourth Proportional to 2,850.68, 3,930.36 and 2,379.24

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Solution

The fourth proportional to 2,850.68, 3,930.36 and 2,379.24 is: 3,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.68 : 3,930.36 = 2,379.24 : x
  2. Step 2: Convert to fraction form
    2,850.68/3,930.36 = 2,379.24/x
  3. Step 3: Cross multiply
    2,850.68x = 3,930.36 × 2,379.24
  4. Step 4: Simplify right side
    2,850.68x = 9,351,269.73
  5. Step 5: Solve for x
    x = 9,351,269.73/2,850.68
  6. Step 6: Final answer
    x = 3,280.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.