Home / 3,455.98-5,181.13-1,375.09

Finding the Fourth Proportional to 3,455.98, 5,181.13 and 1,375.09

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Solution

The fourth proportional to 3,455.98, 5,181.13 and 1,375.09 is: 2,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.98 : 5,181.13 = 1,375.09 : x
  2. Step 2: Convert to fraction form
    3,455.98/5,181.13 = 1,375.09/x
  3. Step 3: Cross multiply
    3,455.98x = 5,181.13 × 1,375.09
  4. Step 4: Simplify right side
    3,455.98x = 7,124,520.05
  5. Step 5: Solve for x
    x = 7,124,520.05/3,455.98
  6. Step 6: Final answer
    x = 2,061.51

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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.