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Finding the Fourth Proportional to 3,608.13, 4,979.21 and 1,952.13

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Solution

The fourth proportional to 3,608.13, 4,979.21 and 1,952.13 is: 2,693.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.13 : 4,979.21 = 1,952.13 : x
  2. Step 2: Convert to fraction form
    3,608.13/4,979.21 = 1,952.13/x
  3. Step 3: Cross multiply
    3,608.13x = 4,979.21 × 1,952.13
  4. Step 4: Simplify right side
    3,608.13x = 9,720,065.22
  5. Step 5: Solve for x
    x = 9,720,065.22/3,608.13
  6. Step 6: Final answer
    x = 2,693.93

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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.