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Finding the Fourth Proportional to 3,659.81, 5,479.01 and 2,268.95

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Solution

The fourth proportional to 3,659.81, 5,479.01 and 2,268.95 is: 3,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,659.81 : 5,479.01 = 2,268.95 : x
  2. Step 2: Convert to fraction form
    3,659.81/5,479.01 = 2,268.95/x
  3. Step 3: Cross multiply
    3,659.81x = 5,479.01 × 2,268.95
  4. Step 4: Simplify right side
    3,659.81x = 12,431,588.39
  5. Step 5: Solve for x
    x = 12,431,588.39/3,659.81
  6. Step 6: Final answer
    x = 3,396.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.