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Finding the Fourth Proportional to 3,574.33, 5,361.69 and 1,382.87

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Solution

The fourth proportional to 3,574.33, 5,361.69 and 1,382.87 is: 2,074.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.33 : 5,361.69 = 1,382.87 : x
  2. Step 2: Convert to fraction form
    3,574.33/5,361.69 = 1,382.87/x
  3. Step 3: Cross multiply
    3,574.33x = 5,361.69 × 1,382.87
  4. Step 4: Simplify right side
    3,574.33x = 7,414,538.84
  5. Step 5: Solve for x
    x = 7,414,538.84/3,574.33
  6. Step 6: Final answer
    x = 2,074.39

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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.