Home / 3,781.05-5,671.38-1,148.43

Finding the Fourth Proportional to 3,781.05, 5,671.38 and 1,148.43

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Solution

The fourth proportional to 3,781.05, 5,671.38 and 1,148.43 is: 1,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.05 : 5,671.38 = 1,148.43 : x
  2. Step 2: Convert to fraction form
    3,781.05/5,671.38 = 1,148.43/x
  3. Step 3: Cross multiply
    3,781.05x = 5,671.38 × 1,148.43
  4. Step 4: Simplify right side
    3,781.05x = 6,513,182.93
  5. Step 5: Solve for x
    x = 6,513,182.93/3,781.05
  6. Step 6: Final answer
    x = 1,722.59

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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.