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Finding the Fourth Proportional to 6,892.12, 10,338.10 and 1,698

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Solution

The fourth proportional to 6,892.12, 10,338.10 and 1,698 is: 2,546.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.12 : 10,338.10 = 1,698 : x
  2. Step 2: Convert to fraction form
    6,892.12/10,338.10 = 1,698/x
  3. Step 3: Cross multiply
    6,892.12x = 10,338.10 × 1,698
  4. Step 4: Simplify right side
    6,892.12x = 17,554,093.80
  5. Step 5: Solve for x
    x = 17,554,093.80/6,892.12
  6. Step 6: Final answer
    x = 2,546.98

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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.