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Finding the Fourth Proportional to 3,886.05, 5,822.60 and 2,729.73

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Solution

The fourth proportional to 3,886.05, 5,822.60 and 2,729.73 is: 4,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.05 : 5,822.60 = 2,729.73 : x
  2. Step 2: Convert to fraction form
    3,886.05/5,822.60 = 2,729.73/x
  3. Step 3: Cross multiply
    3,886.05x = 5,822.60 × 2,729.73
  4. Step 4: Simplify right side
    3,886.05x = 15,894,112.25
  5. Step 5: Solve for x
    x = 15,894,112.25/3,886.05
  6. Step 6: Final answer
    x = 4,090.04

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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.