Home / 5,380.20-8,057.34-3,643.56

Finding the Fourth Proportional to 5,380.20, 8,057.34 and 3,643.56

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Solution

The fourth proportional to 5,380.20, 8,057.34 and 3,643.56 is: 5,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.20 : 8,057.34 = 3,643.56 : x
  2. Step 2: Convert to fraction form
    5,380.20/8,057.34 = 3,643.56/x
  3. Step 3: Cross multiply
    5,380.20x = 8,057.34 × 3,643.56
  4. Step 4: Simplify right side
    5,380.20x = 29,357,401.73
  5. Step 5: Solve for x
    x = 29,357,401.73/5,380.20
  6. Step 6: Final answer
    x = 5,456.56

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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.