Home / 3,781.35-5,674.23-1,589.91

Finding the Fourth Proportional to 3,781.35, 5,674.23 and 1,589.91

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Solution

The fourth proportional to 3,781.35, 5,674.23 and 1,589.91 is: 2,385.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.35 : 5,674.23 = 1,589.91 : x
  2. Step 2: Convert to fraction form
    3,781.35/5,674.23 = 1,589.91/x
  3. Step 3: Cross multiply
    3,781.35x = 5,674.23 × 1,589.91
  4. Step 4: Simplify right side
    3,781.35x = 9,021,515.02
  5. Step 5: Solve for x
    x = 9,021,515.02/3,781.35
  6. Step 6: Final answer
    x = 2,385.79

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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.