Home / 4,120.92-6,183.41-1,929.80

Finding the Fourth Proportional to 4,120.92, 6,183.41 and 1,929.80

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Solution

The fourth proportional to 4,120.92, 6,183.41 and 1,929.80 is: 2,895.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.92 : 6,183.41 = 1,929.80 : x
  2. Step 2: Convert to fraction form
    4,120.92/6,183.41 = 1,929.80/x
  3. Step 3: Cross multiply
    4,120.92x = 6,183.41 × 1,929.80
  4. Step 4: Simplify right side
    4,120.92x = 11,932,750.43
  5. Step 5: Solve for x
    x = 11,932,750.43/4,120.92
  6. Step 6: Final answer
    x = 2,895.65

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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.