Home / 3,940.22-5,909.78-1,167.19

Finding the Fourth Proportional to 3,940.22, 5,909.78 and 1,167.19

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Solution

The fourth proportional to 3,940.22, 5,909.78 and 1,167.19 is: 1,750.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.22 : 5,909.78 = 1,167.19 : x
  2. Step 2: Convert to fraction form
    3,940.22/5,909.78 = 1,167.19/x
  3. Step 3: Cross multiply
    3,940.22x = 5,909.78 × 1,167.19
  4. Step 4: Simplify right side
    3,940.22x = 6,897,824.26
  5. Step 5: Solve for x
    x = 6,897,824.26/3,940.22
  6. Step 6: Final answer
    x = 1,750.62

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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.