Home / 3,872.80-5,349.60-3,043.96

Finding the Fourth Proportional to 3,872.80, 5,349.60 and 3,043.96

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Solution

The fourth proportional to 3,872.80, 5,349.60 and 3,043.96 is: 4,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.80 : 5,349.60 = 3,043.96 : x
  2. Step 2: Convert to fraction form
    3,872.80/5,349.60 = 3,043.96/x
  3. Step 3: Cross multiply
    3,872.80x = 5,349.60 × 3,043.96
  4. Step 4: Simplify right side
    3,872.80x = 16,283,968.42
  5. Step 5: Solve for x
    x = 16,283,968.42/3,872.80
  6. Step 6: Final answer
    x = 4,204.70

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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.