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Finding the Fourth Proportional to 6,808.22, 10,211.11 and 1,810.62

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Solution

The fourth proportional to 6,808.22, 10,211.11 and 1,810.62 is: 2,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808.22 : 10,211.11 = 1,810.62 : x
  2. Step 2: Convert to fraction form
    6,808.22/10,211.11 = 1,810.62/x
  3. Step 3: Cross multiply
    6,808.22x = 10,211.11 × 1,810.62
  4. Step 4: Simplify right side
    6,808.22x = 18,488,397.17
  5. Step 5: Solve for x
    x = 18,488,397.17/6,808.22
  6. Step 6: Final answer
    x = 2,715.60

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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.