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Finding the Fourth Proportional to 3,608.38, 4,979.56 and 1,952.38

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Solution

The fourth proportional to 3,608.38, 4,979.56 and 1,952.38 is: 2,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.38 : 4,979.56 = 1,952.38 : x
  2. Step 2: Convert to fraction form
    3,608.38/4,979.56 = 1,952.38/x
  3. Step 3: Cross multiply
    3,608.38x = 4,979.56 × 1,952.38
  4. Step 4: Simplify right side
    3,608.38x = 9,721,968.46
  5. Step 5: Solve for x
    x = 9,721,968.46/3,608.38
  6. Step 6: Final answer
    x = 2,694.28

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Double scale
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1.5x scale

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.