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Finding the Fourth Proportional to 3,737.67, 5,606.43 and 1,274.21

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Solution

The fourth proportional to 3,737.67, 5,606.43 and 1,274.21 is: 1,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,737.67 : 5,606.43 = 1,274.21 : x
  2. Step 2: Convert to fraction form
    3,737.67/5,606.43 = 1,274.21/x
  3. Step 3: Cross multiply
    3,737.67x = 5,606.43 × 1,274.21
  4. Step 4: Simplify right side
    3,737.67x = 7,143,741.14
  5. Step 5: Solve for x
    x = 7,143,741.14/3,737.67
  6. Step 6: Final answer
    x = 1,911.28

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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.