Home / 3,238.20-4,849.07-2,139.21

Finding the Fourth Proportional to 3,238.20, 4,849.07 and 2,139.21

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Solution

The fourth proportional to 3,238.20, 4,849.07 and 2,139.21 is: 3,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.20 : 4,849.07 = 2,139.21 : x
  2. Step 2: Convert to fraction form
    3,238.20/4,849.07 = 2,139.21/x
  3. Step 3: Cross multiply
    3,238.20x = 4,849.07 × 2,139.21
  4. Step 4: Simplify right side
    3,238.20x = 10,373,168.34
  5. Step 5: Solve for x
    x = 10,373,168.34/3,238.20
  6. Step 6: Final answer
    x = 3,203.37

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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.