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Finding the Fourth Proportional to 3,608.50, 4,979.73 and 1,952.50

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Solution

The fourth proportional to 3,608.50, 4,979.73 and 1,952.50 is: 2,694.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.50 : 4,979.73 = 1,952.50 : x
  2. Step 2: Convert to fraction form
    3,608.50/4,979.73 = 1,952.50/x
  3. Step 3: Cross multiply
    3,608.50x = 4,979.73 × 1,952.50
  4. Step 4: Simplify right side
    3,608.50x = 9,722,922.83
  5. Step 5: Solve for x
    x = 9,722,922.83/3,608.50
  6. Step 6: Final answer
    x = 2,694.45

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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.