Home / 3,997.45-5,516.36-2,180.41

Finding the Fourth Proportional to 3,997.45, 5,516.36 and 2,180.41

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Solution

The fourth proportional to 3,997.45, 5,516.36 and 2,180.41 is: 3,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.45 : 5,516.36 = 2,180.41 : x
  2. Step 2: Convert to fraction form
    3,997.45/5,516.36 = 2,180.41/x
  3. Step 3: Cross multiply
    3,997.45x = 5,516.36 × 2,180.41
  4. Step 4: Simplify right side
    3,997.45x = 12,027,888.02
  5. Step 5: Solve for x
    x = 12,027,888.02/3,997.45
  6. Step 6: Final answer
    x = 3,008.89

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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.