Home / 3,987.60-5,981.41-1,793.77

Finding the Fourth Proportional to 3,987.60, 5,981.41 and 1,793.77

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Solution

The fourth proportional to 3,987.60, 5,981.41 and 1,793.77 is: 2,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.60 : 5,981.41 = 1,793.77 : x
  2. Step 2: Convert to fraction form
    3,987.60/5,981.41 = 1,793.77/x
  3. Step 3: Cross multiply
    3,987.60x = 5,981.41 × 1,793.77
  4. Step 4: Simplify right side
    3,987.60x = 10,729,269.33
  5. Step 5: Solve for x
    x = 10,729,269.33/3,987.60
  6. Step 6: Final answer
    x = 2,690.66

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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.