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Finding the Fourth Proportional to 3,953.28, 5,936.09 and 3,778.01

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Solution

The fourth proportional to 3,953.28, 5,936.09 and 3,778.01 is: 5,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.28 : 5,936.09 = 3,778.01 : x
  2. Step 2: Convert to fraction form
    3,953.28/5,936.09 = 3,778.01/x
  3. Step 3: Cross multiply
    3,953.28x = 5,936.09 × 3,778.01
  4. Step 4: Simplify right side
    3,953.28x = 22,426,607.38
  5. Step 5: Solve for x
    x = 22,426,607.38/3,953.28
  6. Step 6: Final answer
    x = 5,672.91

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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.