Home / 3,997.70-5,516.56-2,318.98

Finding the Fourth Proportional to 3,997.70, 5,516.56 and 2,318.98

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Solution

The fourth proportional to 3,997.70, 5,516.56 and 2,318.98 is: 3,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.70 : 5,516.56 = 2,318.98 : x
  2. Step 2: Convert to fraction form
    3,997.70/5,516.56 = 2,318.98/x
  3. Step 3: Cross multiply
    3,997.70x = 5,516.56 × 2,318.98
  4. Step 4: Simplify right side
    3,997.70x = 12,792,792.31
  5. Step 5: Solve for x
    x = 12,792,792.31/3,997.70
  6. Step 6: Final answer
    x = 3,200.04

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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.