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Finding the Fourth Proportional to 3,608.63, 4,979.81 and 2,036.60

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Solution

The fourth proportional to 3,608.63, 4,979.81 and 2,036.60 is: 2,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.63 : 4,979.81 = 2,036.60 : x
  2. Step 2: Convert to fraction form
    3,608.63/4,979.81 = 2,036.60/x
  3. Step 3: Cross multiply
    3,608.63x = 4,979.81 × 2,036.60
  4. Step 4: Simplify right side
    3,608.63x = 10,141,881.05
  5. Step 5: Solve for x
    x = 10,141,881.05/3,608.63
  6. Step 6: Final answer
    x = 2,810.45

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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.