Home / 3,455.29-5,180.86-1,375.62

Finding the Fourth Proportional to 3,455.29, 5,180.86 and 1,375.62

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Solution

The fourth proportional to 3,455.29, 5,180.86 and 1,375.62 is: 2,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.29 : 5,180.86 = 1,375.62 : x
  2. Step 2: Convert to fraction form
    3,455.29/5,180.86 = 1,375.62/x
  3. Step 3: Cross multiply
    3,455.29x = 5,180.86 × 1,375.62
  4. Step 4: Simplify right side
    3,455.29x = 7,126,876.92
  5. Step 5: Solve for x
    x = 7,126,876.92/3,455.29
  6. Step 6: Final answer
    x = 2,062.60

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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.