Home / 3,234.70-4,857.45-2,143.90

Finding the Fourth Proportional to 3,234.70, 4,857.45 and 2,143.90

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Solution

The fourth proportional to 3,234.70, 4,857.45 and 2,143.90 is: 3,219.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.70 : 4,857.45 = 2,143.90 : x
  2. Step 2: Convert to fraction form
    3,234.70/4,857.45 = 2,143.90/x
  3. Step 3: Cross multiply
    3,234.70x = 4,857.45 × 2,143.90
  4. Step 4: Simplify right side
    3,234.70x = 10,413,887.06
  5. Step 5: Solve for x
    x = 10,413,887.06/3,234.70
  6. Step 6: Final answer
    x = 3,219.43

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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.