Home / 3,872.42-5,343.98-2,104.02

Finding the Fourth Proportional to 3,872.42, 5,343.98 and 2,104.02

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Solution

The fourth proportional to 3,872.42, 5,343.98 and 2,104.02 is: 2,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.42 : 5,343.98 = 2,104.02 : x
  2. Step 2: Convert to fraction form
    3,872.42/5,343.98 = 2,104.02/x
  3. Step 3: Cross multiply
    3,872.42x = 5,343.98 × 2,104.02
  4. Step 4: Simplify right side
    3,872.42x = 11,243,850.09
  5. Step 5: Solve for x
    x = 11,243,850.09/3,872.42
  6. Step 6: Final answer
    x = 2,903.57

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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.