Home / 3,238.70-4,849.81-2,139.71

Finding the Fourth Proportional to 3,238.70, 4,849.81 and 2,139.71

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Solution

The fourth proportional to 3,238.70, 4,849.81 and 2,139.71 is: 3,204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.70 : 4,849.81 = 2,139.71 : x
  2. Step 2: Convert to fraction form
    3,238.70/4,849.81 = 2,139.71/x
  3. Step 3: Cross multiply
    3,238.70x = 4,849.81 × 2,139.71
  4. Step 4: Simplify right side
    3,238.70x = 10,377,186.96
  5. Step 5: Solve for x
    x = 10,377,186.96/3,238.70
  6. Step 6: Final answer
    x = 3,204.12

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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.