Home / 6,892.78-10,339.86-2,211.62

Finding the Fourth Proportional to 6,892.78, 10,339.86 and 2,211.62

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Solution

The fourth proportional to 6,892.78, 10,339.86 and 2,211.62 is: 3,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.78 : 10,339.86 = 2,211.62 : x
  2. Step 2: Convert to fraction form
    6,892.78/10,339.86 = 2,211.62/x
  3. Step 3: Cross multiply
    6,892.78x = 10,339.86 × 2,211.62
  4. Step 4: Simplify right side
    6,892.78x = 22,867,841.17
  5. Step 5: Solve for x
    x = 22,867,841.17/6,892.78
  6. Step 6: Final answer
    x = 3,317.65

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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.