Home / 3,873.25-5,813.30-2,119.87

Finding the Fourth Proportional to 3,873.25, 5,813.30 and 2,119.87

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Solution

The fourth proportional to 3,873.25, 5,813.30 and 2,119.87 is: 3,181.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.25 : 5,813.30 = 2,119.87 : x
  2. Step 2: Convert to fraction form
    3,873.25/5,813.30 = 2,119.87/x
  3. Step 3: Cross multiply
    3,873.25x = 5,813.30 × 2,119.87
  4. Step 4: Simplify right side
    3,873.25x = 12,323,440.27
  5. Step 5: Solve for x
    x = 12,323,440.27/3,873.25
  6. Step 6: Final answer
    x = 3,181.68

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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.