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Finding the Fourth Proportional to 5,485, 8,232.08 and 3,231.48

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Solution

The fourth proportional to 5,485, 8,232.08 and 3,231.48 is: 4,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485 : 8,232.08 = 3,231.48 : x
  2. Step 2: Convert to fraction form
    5,485/8,232.08 = 3,231.48/x
  3. Step 3: Cross multiply
    5,485x = 8,232.08 × 3,231.48
  4. Step 4: Simplify right side
    5,485x = 26,601,801.88
  5. Step 5: Solve for x
    x = 26,601,801.88/5,485
  6. Step 6: Final answer
    x = 4,849.92

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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.