Home / 2,808.08-3,876-1,629.44

Finding the Fourth Proportional to 2,808.08, 3,876 and 1,629.44

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Solution

The fourth proportional to 2,808.08, 3,876 and 1,629.44 is: 2,249.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.08 : 3,876 = 1,629.44 : x
  2. Step 2: Convert to fraction form
    2,808.08/3,876 = 1,629.44/x
  3. Step 3: Cross multiply
    2,808.08x = 3,876 × 1,629.44
  4. Step 4: Simplify right side
    2,808.08x = 6,315,709.44
  5. Step 5: Solve for x
    x = 6,315,709.44/2,808.08
  6. Step 6: Final answer
    x = 2,249.12

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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.