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Finding the Fourth Proportional to 2,750, 3,795.02 and 1,631.50

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Solution

The fourth proportional to 2,750, 3,795.02 and 1,631.50 is: 2,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750 : 3,795.02 = 1,631.50 : x
  2. Step 2: Convert to fraction form
    2,750/3,795.02 = 1,631.50/x
  3. Step 3: Cross multiply
    2,750x = 3,795.02 × 1,631.50
  4. Step 4: Simplify right side
    2,750x = 6,191,575.13
  5. Step 5: Solve for x
    x = 6,191,575.13/2,750
  6. Step 6: Final answer
    x = 2,251.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.