Home / 3,911.82-5,866.70-1,447.35

Finding the Fourth Proportional to 3,911.82, 5,866.70 and 1,447.35

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Solution

The fourth proportional to 3,911.82, 5,866.70 and 1,447.35 is: 2,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.82 : 5,866.70 = 1,447.35 : x
  2. Step 2: Convert to fraction form
    3,911.82/5,866.70 = 1,447.35/x
  3. Step 3: Cross multiply
    3,911.82x = 5,866.70 × 1,447.35
  4. Step 4: Simplify right side
    3,911.82x = 8,491,168.25
  5. Step 5: Solve for x
    x = 8,491,168.25/3,911.82
  6. Step 6: Final answer
    x = 2,170.64

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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.