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Finding the Fourth Proportional to 3,883.31, 5,815.68 and 2,125.68

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Solution

The fourth proportional to 3,883.31, 5,815.68 and 2,125.68 is: 3,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.31 : 5,815.68 = 2,125.68 : x
  2. Step 2: Convert to fraction form
    3,883.31/5,815.68 = 2,125.68/x
  3. Step 3: Cross multiply
    3,883.31x = 5,815.68 × 2,125.68
  4. Step 4: Simplify right side
    3,883.31x = 12,362,274.66
  5. Step 5: Solve for x
    x = 12,362,274.66/3,883.31
  6. Step 6: Final answer
    x = 3,183.44

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1.5x scale

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.