Home / 3,243.76-4,863.40-2,144.81

Finding the Fourth Proportional to 3,243.76, 4,863.40 and 2,144.81

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Solution

The fourth proportional to 3,243.76, 4,863.40 and 2,144.81 is: 3,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.76 : 4,863.40 = 2,144.81 : x
  2. Step 2: Convert to fraction form
    3,243.76/4,863.40 = 2,144.81/x
  3. Step 3: Cross multiply
    3,243.76x = 4,863.40 × 2,144.81
  4. Step 4: Simplify right side
    3,243.76x = 10,431,068.95
  5. Step 5: Solve for x
    x = 10,431,068.95/3,243.76
  6. Step 6: Final answer
    x = 3,215.73

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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.