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Finding the Fourth Proportional to 6,963.76, 9,610.49 and 3,979.53

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Solution

The fourth proportional to 6,963.76, 9,610.49 and 3,979.53 is: 5,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,963.76 : 9,610.49 = 3,979.53 : x
  2. Step 2: Convert to fraction form
    6,963.76/9,610.49 = 3,979.53/x
  3. Step 3: Cross multiply
    6,963.76x = 9,610.49 × 3,979.53
  4. Step 4: Simplify right side
    6,963.76x = 38,245,185.22
  5. Step 5: Solve for x
    x = 38,245,185.22/6,963.76
  6. Step 6: Final answer
    x = 5,492.03

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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.