Home / 3,997.15-5,513.57-2,876.31

Finding the Fourth Proportional to 3,997.15, 5,513.57 and 2,876.31

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Solution

The fourth proportional to 3,997.15, 5,513.57 and 2,876.31 is: 3,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.15 : 5,513.57 = 2,876.31 : x
  2. Step 2: Convert to fraction form
    3,997.15/5,513.57 = 2,876.31/x
  3. Step 3: Cross multiply
    3,997.15x = 5,513.57 × 2,876.31
  4. Step 4: Simplify right side
    3,997.15x = 15,858,732.93
  5. Step 5: Solve for x
    x = 15,858,732.93/3,997.15
  6. Step 6: Final answer
    x = 3,967.51

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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.