Home / 3,818.36-5,717.30-2,172.44

Finding the Fourth Proportional to 3,818.36, 5,717.30 and 2,172.44

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Solution

The fourth proportional to 3,818.36, 5,717.30 and 2,172.44 is: 3,252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.36 : 5,717.30 = 2,172.44 : x
  2. Step 2: Convert to fraction form
    3,818.36/5,717.30 = 2,172.44/x
  3. Step 3: Cross multiply
    3,818.36x = 5,717.30 × 2,172.44
  4. Step 4: Simplify right side
    3,818.36x = 12,420,491.21
  5. Step 5: Solve for x
    x = 12,420,491.21/3,818.36
  6. Step 6: Final answer
    x = 3,252.83

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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.