Home / 3,188.74-4,400.87-2,009.80

Finding the Fourth Proportional to 3,188.74, 4,400.87 and 2,009.80

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Solution

The fourth proportional to 3,188.74, 4,400.87 and 2,009.80 is: 2,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.74 : 4,400.87 = 2,009.80 : x
  2. Step 2: Convert to fraction form
    3,188.74/4,400.87 = 2,009.80/x
  3. Step 3: Cross multiply
    3,188.74x = 4,400.87 × 2,009.80
  4. Step 4: Simplify right side
    3,188.74x = 8,844,868.53
  5. Step 5: Solve for x
    x = 8,844,868.53/3,188.74
  6. Step 6: Final answer
    x = 2,773.78

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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.