Home / 5,410.80-8,109.72-2,481.84

Finding the Fourth Proportional to 5,410.80, 8,109.72 and 2,481.84

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Solution

The fourth proportional to 5,410.80, 8,109.72 and 2,481.84 is: 3,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.80 : 8,109.72 = 2,481.84 : x
  2. Step 2: Convert to fraction form
    5,410.80/8,109.72 = 2,481.84/x
  3. Step 3: Cross multiply
    5,410.80x = 8,109.72 × 2,481.84
  4. Step 4: Simplify right side
    5,410.80x = 20,127,027.48
  5. Step 5: Solve for x
    x = 20,127,027.48/5,410.80
  6. Step 6: Final answer
    x = 3,719.79

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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.