Home / 3,997.62-5,514.87-2,580.78

Finding the Fourth Proportional to 3,997.62, 5,514.87 and 2,580.78

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Solution

The fourth proportional to 3,997.62, 5,514.87 and 2,580.78 is: 3,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.62 : 5,514.87 = 2,580.78 : x
  2. Step 2: Convert to fraction form
    3,997.62/5,514.87 = 2,580.78/x
  3. Step 3: Cross multiply
    3,997.62x = 5,514.87 × 2,580.78
  4. Step 4: Simplify right side
    3,997.62x = 14,232,666.20
  5. Step 5: Solve for x
    x = 14,232,666.20/3,997.62
  6. Step 6: Final answer
    x = 3,560.28

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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.