Home / 4,481.80-6,720.86-1,709.48

Finding the Fourth Proportional to 4,481.80, 6,720.86 and 1,709.48

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Solution

The fourth proportional to 4,481.80, 6,720.86 and 1,709.48 is: 2,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.80 : 6,720.86 = 1,709.48 : x
  2. Step 2: Convert to fraction form
    4,481.80/6,720.86 = 1,709.48/x
  3. Step 3: Cross multiply
    4,481.80x = 6,720.86 × 1,709.48
  4. Step 4: Simplify right side
    4,481.80x = 11,489,175.75
  5. Step 5: Solve for x
    x = 11,489,175.75/4,481.80
  6. Step 6: Final answer
    x = 2,563.52

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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.