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Finding the Fourth Proportional to 3,836.56, 5,751.10 and 1,237.72

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Solution

The fourth proportional to 3,836.56, 5,751.10 and 1,237.72 is: 1,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.56 : 5,751.10 = 1,237.72 : x
  2. Step 2: Convert to fraction form
    3,836.56/5,751.10 = 1,237.72/x
  3. Step 3: Cross multiply
    3,836.56x = 5,751.10 × 1,237.72
  4. Step 4: Simplify right side
    3,836.56x = 7,118,251.49
  5. Step 5: Solve for x
    x = 7,118,251.49/3,836.56
  6. Step 6: Final answer
    x = 1,855.37

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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.