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Finding the Fourth Proportional to 6,511.75, 9,769.25 and 1,894.75

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Solution

The fourth proportional to 6,511.75, 9,769.25 and 1,894.75 is: 2,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.75 : 9,769.25 = 1,894.75 : x
  2. Step 2: Convert to fraction form
    6,511.75/9,769.25 = 1,894.75/x
  3. Step 3: Cross multiply
    6,511.75x = 9,769.25 × 1,894.75
  4. Step 4: Simplify right side
    6,511.75x = 18,510,276.96
  5. Step 5: Solve for x
    x = 18,510,276.96/6,511.75
  6. Step 6: Final answer
    x = 2,842.60

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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.