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Finding the Fourth Proportional to 3,384.64, 5,076.96 and 1,076.14

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Solution

The fourth proportional to 3,384.64, 5,076.96 and 1,076.14 is: 1,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.64 : 5,076.96 = 1,076.14 : x
  2. Step 2: Convert to fraction form
    3,384.64/5,076.96 = 1,076.14/x
  3. Step 3: Cross multiply
    3,384.64x = 5,076.96 × 1,076.14
  4. Step 4: Simplify right side
    3,384.64x = 5,463,519.73
  5. Step 5: Solve for x
    x = 5,463,519.73/3,384.64
  6. Step 6: Final answer
    x = 1,614.21

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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.