Home / 3,782.20-5,219.52-2,289.82

Finding the Fourth Proportional to 3,782.20, 5,219.52 and 2,289.82

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Solution

The fourth proportional to 3,782.20, 5,219.52 and 2,289.82 is: 3,160.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.20 : 5,219.52 = 2,289.82 : x
  2. Step 2: Convert to fraction form
    3,782.20/5,219.52 = 2,289.82/x
  3. Step 3: Cross multiply
    3,782.20x = 5,219.52 × 2,289.82
  4. Step 4: Simplify right side
    3,782.20x = 11,951,761.29
  5. Step 5: Solve for x
    x = 11,951,761.29/3,782.20
  6. Step 6: Final answer
    x = 3,160.00

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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.