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Finding the Fourth Proportional to 6,892.35, 9,511.40 and 3,748.54

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Solution

The fourth proportional to 6,892.35, 9,511.40 and 3,748.54 is: 5,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.35 : 9,511.40 = 3,748.54 : x
  2. Step 2: Convert to fraction form
    6,892.35/9,511.40 = 3,748.54/x
  3. Step 3: Cross multiply
    6,892.35x = 9,511.40 × 3,748.54
  4. Step 4: Simplify right side
    6,892.35x = 35,653,797.06
  5. Step 5: Solve for x
    x = 35,653,797.06/6,892.35
  6. Step 6: Final answer
    x = 5,172.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.