Home / 2,429.28-3,650.22-2,121.96

Finding the Fourth Proportional to 2,429.28, 3,650.22 and 2,121.96

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Solution

The fourth proportional to 2,429.28, 3,650.22 and 2,121.96 is: 3,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.28 : 3,650.22 = 2,121.96 : x
  2. Step 2: Convert to fraction form
    2,429.28/3,650.22 = 2,121.96/x
  3. Step 3: Cross multiply
    2,429.28x = 3,650.22 × 2,121.96
  4. Step 4: Simplify right side
    2,429.28x = 7,745,620.83
  5. Step 5: Solve for x
    x = 7,745,620.83/2,429.28
  6. Step 6: Final answer
    x = 3,188.44

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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.