Home / 3,893.62-5,372.99-2,125.19

Finding the Fourth Proportional to 3,893.62, 5,372.99 and 2,125.19

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Solution

The fourth proportional to 3,893.62, 5,372.99 and 2,125.19 is: 2,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.62 : 5,372.99 = 2,125.19 : x
  2. Step 2: Convert to fraction form
    3,893.62/5,372.99 = 2,125.19/x
  3. Step 3: Cross multiply
    3,893.62x = 5,372.99 × 2,125.19
  4. Step 4: Simplify right side
    3,893.62x = 11,418,613.99
  5. Step 5: Solve for x
    x = 11,418,613.99/3,893.62
  6. Step 6: Final answer
    x = 2,932.65

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1.5x scale

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.