Home / 3,945.36-5,914.80-1,996.56

Finding the Fourth Proportional to 3,945.36, 5,914.80 and 1,996.56

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Solution

The fourth proportional to 3,945.36, 5,914.80 and 1,996.56 is: 2,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.36 : 5,914.80 = 1,996.56 : x
  2. Step 2: Convert to fraction form
    3,945.36/5,914.80 = 1,996.56/x
  3. Step 3: Cross multiply
    3,945.36x = 5,914.80 × 1,996.56
  4. Step 4: Simplify right side
    3,945.36x = 11,809,253.09
  5. Step 5: Solve for x
    x = 11,809,253.09/3,945.36
  6. Step 6: Final answer
    x = 2,993.20

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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.