Home / 3,945.18-5,914.62-1,864.08

Finding the Fourth Proportional to 3,945.18, 5,914.62 and 1,864.08

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Solution

The fourth proportional to 3,945.18, 5,914.62 and 1,864.08 is: 2,794.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.18 : 5,914.62 = 1,864.08 : x
  2. Step 2: Convert to fraction form
    3,945.18/5,914.62 = 1,864.08/x
  3. Step 3: Cross multiply
    3,945.18x = 5,914.62 × 1,864.08
  4. Step 4: Simplify right side
    3,945.18x = 11,025,324.85
  5. Step 5: Solve for x
    x = 11,025,324.85/3,945.18
  6. Step 6: Final answer
    x = 2,794.63

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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.