Home / 3,429.60-5,149.80-2,608.80

Finding the Fourth Proportional to 3,429.60, 5,149.80 and 2,608.80

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Solution

The fourth proportional to 3,429.60, 5,149.80 and 2,608.80 is: 3,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.60 : 5,149.80 = 2,608.80 : x
  2. Step 2: Convert to fraction form
    3,429.60/5,149.80 = 2,608.80/x
  3. Step 3: Cross multiply
    3,429.60x = 5,149.80 × 2,608.80
  4. Step 4: Simplify right side
    3,429.60x = 13,434,798.24
  5. Step 5: Solve for x
    x = 13,434,798.24/3,429.60
  6. Step 6: Final answer
    x = 3,917.31

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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.