Home / 3,762.10-5,648.55-2,121.85

Finding the Fourth Proportional to 3,762.10, 5,648.55 and 2,121.85

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Solution

The fourth proportional to 3,762.10, 5,648.55 and 2,121.85 is: 3,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.10 : 5,648.55 = 2,121.85 : x
  2. Step 2: Convert to fraction form
    3,762.10/5,648.55 = 2,121.85/x
  3. Step 3: Cross multiply
    3,762.10x = 5,648.55 × 2,121.85
  4. Step 4: Simplify right side
    3,762.10x = 11,985,375.82
  5. Step 5: Solve for x
    x = 11,985,375.82/3,762.10
  6. Step 6: Final answer
    x = 3,185.82

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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.