Home / 3,782.74-5,219.99-2,189.14

Finding the Fourth Proportional to 3,782.74, 5,219.99 and 2,189.14

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Solution

The fourth proportional to 3,782.74, 5,219.99 and 2,189.14 is: 3,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.74 : 5,219.99 = 2,189.14 : x
  2. Step 2: Convert to fraction form
    3,782.74/5,219.99 = 2,189.14/x
  3. Step 3: Cross multiply
    3,782.74x = 5,219.99 × 2,189.14
  4. Step 4: Simplify right side
    3,782.74x = 11,427,288.91
  5. Step 5: Solve for x
    x = 11,427,288.91/3,782.74
  6. Step 6: Final answer
    x = 3,020.90

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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.