Home / 3,940.12-5,910.82-1,167.06

Finding the Fourth Proportional to 3,940.12, 5,910.82 and 1,167.06

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Solution

The fourth proportional to 3,940.12, 5,910.82 and 1,167.06 is: 1,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.12 : 5,910.82 = 1,167.06 : x
  2. Step 2: Convert to fraction form
    3,940.12/5,910.82 = 1,167.06/x
  3. Step 3: Cross multiply
    3,940.12x = 5,910.82 × 1,167.06
  4. Step 4: Simplify right side
    3,940.12x = 6,898,281.59
  5. Step 5: Solve for x
    x = 6,898,281.59/3,940.12
  6. Step 6: Final answer
    x = 1,750.78

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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.