Home / 4,168.80-5,755.34-3,112.39

Finding the Fourth Proportional to 4,168.80, 5,755.34 and 3,112.39

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Solution

The fourth proportional to 4,168.80, 5,755.34 and 3,112.39 is: 4,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,168.80 : 5,755.34 = 3,112.39 : x
  2. Step 2: Convert to fraction form
    4,168.80/5,755.34 = 3,112.39/x
  3. Step 3: Cross multiply
    4,168.80x = 5,755.34 × 3,112.39
  4. Step 4: Simplify right side
    4,168.80x = 17,912,862.66
  5. Step 5: Solve for x
    x = 17,912,862.66/4,168.80
  6. Step 6: Final answer
    x = 4,296.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.