Home / 3,922.83-5,878.58-2,187.81

Finding the Fourth Proportional to 3,922.83, 5,878.58 and 2,187.81

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Solution

The fourth proportional to 3,922.83, 5,878.58 and 2,187.81 is: 3,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.83 : 5,878.58 = 2,187.81 : x
  2. Step 2: Convert to fraction form
    3,922.83/5,878.58 = 2,187.81/x
  3. Step 3: Cross multiply
    3,922.83x = 5,878.58 × 2,187.81
  4. Step 4: Simplify right side
    3,922.83x = 12,861,205.17
  5. Step 5: Solve for x
    x = 12,861,205.17/3,922.83
  6. Step 6: Final answer
    x = 3,278.55

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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.