Home / 3,745.12-5,168.26-2,151.87

Finding the Fourth Proportional to 3,745.12, 5,168.26 and 2,151.87

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Solution

The fourth proportional to 3,745.12, 5,168.26 and 2,151.87 is: 2,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.12 : 5,168.26 = 2,151.87 : x
  2. Step 2: Convert to fraction form
    3,745.12/5,168.26 = 2,151.87/x
  3. Step 3: Cross multiply
    3,745.12x = 5,168.26 × 2,151.87
  4. Step 4: Simplify right side
    3,745.12x = 11,121,423.65
  5. Step 5: Solve for x
    x = 11,121,423.65/3,745.12
  6. Step 6: Final answer
    x = 2,969.58

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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.