Home / 3,415.60-5,120.79-1,441.83

Finding the Fourth Proportional to 3,415.60, 5,120.79 and 1,441.83

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Solution

The fourth proportional to 3,415.60, 5,120.79 and 1,441.83 is: 2,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.60 : 5,120.79 = 1,441.83 : x
  2. Step 2: Convert to fraction form
    3,415.60/5,120.79 = 1,441.83/x
  3. Step 3: Cross multiply
    3,415.60x = 5,120.79 × 1,441.83
  4. Step 4: Simplify right side
    3,415.60x = 7,383,299.45
  5. Step 5: Solve for x
    x = 7,383,299.45/3,415.60
  6. Step 6: Final answer
    x = 2,161.64

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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.