Home / 2,420.68-3,622.38-2,257.96

Finding the Fourth Proportional to 2,420.68, 3,622.38 and 2,257.96

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Solution

The fourth proportional to 2,420.68, 3,622.38 and 2,257.96 is: 3,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.68 : 3,622.38 = 2,257.96 : x
  2. Step 2: Convert to fraction form
    2,420.68/3,622.38 = 2,257.96/x
  3. Step 3: Cross multiply
    2,420.68x = 3,622.38 × 2,257.96
  4. Step 4: Simplify right side
    2,420.68x = 8,179,189.14
  5. Step 5: Solve for x
    x = 8,179,189.14/2,420.68
  6. Step 6: Final answer
    x = 3,378.88

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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.