Home / 3,428.72-5,157.68-3,107.96

Finding the Fourth Proportional to 3,428.72, 5,157.68 and 3,107.96

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Solution

The fourth proportional to 3,428.72, 5,157.68 and 3,107.96 is: 4,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.72 : 5,157.68 = 3,107.96 : x
  2. Step 2: Convert to fraction form
    3,428.72/5,157.68 = 3,107.96/x
  3. Step 3: Cross multiply
    3,428.72x = 5,157.68 × 3,107.96
  4. Step 4: Simplify right side
    3,428.72x = 16,029,863.13
  5. Step 5: Solve for x
    x = 16,029,863.13/3,428.72
  6. Step 6: Final answer
    x = 4,675.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.