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Finding the Fourth Proportional to 3,272, 4,907.01 and 1,081.31

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Solution

The fourth proportional to 3,272, 4,907.01 and 1,081.31 is: 1,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272 : 4,907.01 = 1,081.31 : x
  2. Step 2: Convert to fraction form
    3,272/4,907.01 = 1,081.31/x
  3. Step 3: Cross multiply
    3,272x = 4,907.01 × 1,081.31
  4. Step 4: Simplify right side
    3,272x = 5,305,998.98
  5. Step 5: Solve for x
    x = 5,305,998.98/3,272
  6. Step 6: Final answer
    x = 1,621.64

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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.