Home / 3,211.38-4,818-1,362.78

Finding the Fourth Proportional to 3,211.38, 4,818 and 1,362.78

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Solution

The fourth proportional to 3,211.38, 4,818 and 1,362.78 is: 2,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.38 : 4,818 = 1,362.78 : x
  2. Step 2: Convert to fraction form
    3,211.38/4,818 = 1,362.78/x
  3. Step 3: Cross multiply
    3,211.38x = 4,818 × 1,362.78
  4. Step 4: Simplify right side
    3,211.38x = 6,565,874.04
  5. Step 5: Solve for x
    x = 6,565,874.04/3,211.38
  6. Step 6: Final answer
    x = 2,044.56

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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.