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Finding the Fourth Proportional to 3,664.58, 5,497.78 and 1,443.56

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Solution

The fourth proportional to 3,664.58, 5,497.78 and 1,443.56 is: 2,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.58 : 5,497.78 = 1,443.56 : x
  2. Step 2: Convert to fraction form
    3,664.58/5,497.78 = 1,443.56/x
  3. Step 3: Cross multiply
    3,664.58x = 5,497.78 × 1,443.56
  4. Step 4: Simplify right side
    3,664.58x = 7,936,375.30
  5. Step 5: Solve for x
    x = 7,936,375.30/3,664.58
  6. Step 6: Final answer
    x = 2,165.70

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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.