Home / 5,871.73-8,103.78-3,781.93

Finding the Fourth Proportional to 5,871.73, 8,103.78 and 3,781.93

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Solution

The fourth proportional to 5,871.73, 8,103.78 and 3,781.93 is: 5,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.73 : 8,103.78 = 3,781.93 : x
  2. Step 2: Convert to fraction form
    5,871.73/8,103.78 = 3,781.93/x
  3. Step 3: Cross multiply
    5,871.73x = 8,103.78 × 3,781.93
  4. Step 4: Simplify right side
    5,871.73x = 30,647,928.70
  5. Step 5: Solve for x
    x = 30,647,928.70/5,871.73
  6. Step 6: Final answer
    x = 5,219.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.