Home / 3,905.15-5,863.79-3,167.64

Finding the Fourth Proportional to 3,905.15, 5,863.79 and 3,167.64

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Solution

The fourth proportional to 3,905.15, 5,863.79 and 3,167.64 is: 4,756.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.15 : 5,863.79 = 3,167.64 : x
  2. Step 2: Convert to fraction form
    3,905.15/5,863.79 = 3,167.64/x
  3. Step 3: Cross multiply
    3,905.15x = 5,863.79 × 3,167.64
  4. Step 4: Simplify right side
    3,905.15x = 18,574,383.67
  5. Step 5: Solve for x
    x = 18,574,383.67/3,905.15
  6. Step 6: Final answer
    x = 4,756.39

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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.