Home / 3,945.11-5,917.56-1,866.07

Finding the Fourth Proportional to 3,945.11, 5,917.56 and 1,866.07

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Solution

The fourth proportional to 3,945.11, 5,917.56 and 1,866.07 is: 2,799.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.11 : 5,917.56 = 1,866.07 : x
  2. Step 2: Convert to fraction form
    3,945.11/5,917.56 = 1,866.07/x
  3. Step 3: Cross multiply
    3,945.11x = 5,917.56 × 1,866.07
  4. Step 4: Simplify right side
    3,945.11x = 11,042,581.59
  5. Step 5: Solve for x
    x = 11,042,581.59/3,945.11
  6. Step 6: Final answer
    x = 2,799.06

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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.