Home / 3,919.86-5,891.40-2,608.07

Finding the Fourth Proportional to 3,919.86, 5,891.40 and 2,608.07

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Solution

The fourth proportional to 3,919.86, 5,891.40 and 2,608.07 is: 3,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.86 : 5,891.40 = 2,608.07 : x
  2. Step 2: Convert to fraction form
    3,919.86/5,891.40 = 2,608.07/x
  3. Step 3: Cross multiply
    3,919.86x = 5,891.40 × 2,608.07
  4. Step 4: Simplify right side
    3,919.86x = 15,365,154.14
  5. Step 5: Solve for x
    x = 15,365,154.14/3,919.86
  6. Step 6: Final answer
    x = 3,919.82

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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.