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Finding the Fourth Proportional to 3,738.03, 5,607.29 and 1,272.53

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Solution

The fourth proportional to 3,738.03, 5,607.29 and 1,272.53 is: 1,908.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.03 : 5,607.29 = 1,272.53 : x
  2. Step 2: Convert to fraction form
    3,738.03/5,607.29 = 1,272.53/x
  3. Step 3: Cross multiply
    3,738.03x = 5,607.29 × 1,272.53
  4. Step 4: Simplify right side
    3,738.03x = 7,135,410.34
  5. Step 5: Solve for x
    x = 7,135,410.34/3,738.03
  6. Step 6: Final answer
    x = 1,908.87

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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.