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Finding the Fourth Proportional to 3,796.40, 5,693.88 and 1,487.36

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Solution

The fourth proportional to 3,796.40, 5,693.88 and 1,487.36 is: 2,230.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.40 : 5,693.88 = 1,487.36 : x
  2. Step 2: Convert to fraction form
    3,796.40/5,693.88 = 1,487.36/x
  3. Step 3: Cross multiply
    3,796.40x = 5,693.88 × 1,487.36
  4. Step 4: Simplify right side
    3,796.40x = 8,468,849.36
  5. Step 5: Solve for x
    x = 8,468,849.36/3,796.40
  6. Step 6: Final answer
    x = 2,230.76

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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.