Home / 3,997.32-5,516.31-2,228.89

Finding the Fourth Proportional to 3,997.32, 5,516.31 and 2,228.89

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Solution

The fourth proportional to 3,997.32, 5,516.31 and 2,228.89 is: 3,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.32 : 5,516.31 = 2,228.89 : x
  2. Step 2: Convert to fraction form
    3,997.32/5,516.31 = 2,228.89/x
  3. Step 3: Cross multiply
    3,997.32x = 5,516.31 × 2,228.89
  4. Step 4: Simplify right side
    3,997.32x = 12,295,237.05
  5. Step 5: Solve for x
    x = 12,295,237.05/3,997.32
  6. Step 6: Final answer
    x = 3,075.87

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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.