Home / 5,412.58-7,469.41-3,175.78

Finding the Fourth Proportional to 5,412.58, 7,469.41 and 3,175.78

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Solution

The fourth proportional to 5,412.58, 7,469.41 and 3,175.78 is: 4,382.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.58 : 7,469.41 = 3,175.78 : x
  2. Step 2: Convert to fraction form
    5,412.58/7,469.41 = 3,175.78/x
  3. Step 3: Cross multiply
    5,412.58x = 7,469.41 × 3,175.78
  4. Step 4: Simplify right side
    5,412.58x = 23,721,202.89
  5. Step 5: Solve for x
    x = 23,721,202.89/5,412.58
  6. Step 6: Final answer
    x = 4,382.61

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1.5x scale

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.