Home / 3,781.58-5,673.36-1,591.85

Finding the Fourth Proportional to 3,781.58, 5,673.36 and 1,591.85

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Solution

The fourth proportional to 3,781.58, 5,673.36 and 1,591.85 is: 2,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.58 : 5,673.36 = 1,591.85 : x
  2. Step 2: Convert to fraction form
    3,781.58/5,673.36 = 1,591.85/x
  3. Step 3: Cross multiply
    3,781.58x = 5,673.36 × 1,591.85
  4. Step 4: Simplify right side
    3,781.58x = 9,031,138.12
  5. Step 5: Solve for x
    x = 9,031,138.12/3,781.58
  6. Step 6: Final answer
    x = 2,388.19

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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.