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Finding the Fourth Proportional to 3,874.34, 5,809.62 and 1,927.64

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Solution

The fourth proportional to 3,874.34, 5,809.62 and 1,927.64 is: 2,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.34 : 5,809.62 = 1,927.64 : x
  2. Step 2: Convert to fraction form
    3,874.34/5,809.62 = 1,927.64/x
  3. Step 3: Cross multiply
    3,874.34x = 5,809.62 × 1,927.64
  4. Step 4: Simplify right side
    3,874.34x = 11,198,855.90
  5. Step 5: Solve for x
    x = 11,198,855.90/3,874.34
  6. Step 6: Final answer
    x = 2,890.52

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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.