Home / 3,781.70-5,665.26-1,835.28

Finding the Fourth Proportional to 3,781.70, 5,665.26 and 1,835.28

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Solution

The fourth proportional to 3,781.70, 5,665.26 and 1,835.28 is: 2,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.70 : 5,665.26 = 1,835.28 : x
  2. Step 2: Convert to fraction form
    3,781.70/5,665.26 = 1,835.28/x
  3. Step 3: Cross multiply
    3,781.70x = 5,665.26 × 1,835.28
  4. Step 4: Simplify right side
    3,781.70x = 10,397,338.37
  5. Step 5: Solve for x
    x = 10,397,338.37/3,781.70
  6. Step 6: Final answer
    x = 2,749.38

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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.