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Finding the Fourth Proportional to 7,382, 11,073 and 3,278

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Solution

The fourth proportional to 7,382, 11,073 and 3,278 is: 4,917

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382 : 11,073 = 3,278 : x
  2. Step 2: Convert to fraction form
    7,382/11,073 = 3,278/x
  3. Step 3: Cross multiply
    7,382x = 11,073 × 3,278
  4. Step 4: Simplify right side
    7,382x = 36,297,294
  5. Step 5: Solve for x
    x = 36,297,294/7,382
  6. Step 6: Final answer
    x = 4,917

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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.