Home / 2,285.64-3,427.18-725.35

Finding the Fourth Proportional to 2,285.64, 3,427.18 and 725.35

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Solution

The fourth proportional to 2,285.64, 3,427.18 and 725.35 is: 1,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.64 : 3,427.18 = 725.35 : x
  2. Step 2: Convert to fraction form
    2,285.64/3,427.18 = 725.35/x
  3. Step 3: Cross multiply
    2,285.64x = 3,427.18 × 725.35
  4. Step 4: Simplify right side
    2,285.64x = 2,485,910.70
  5. Step 5: Solve for x
    x = 2,485,910.70/2,285.64
  6. Step 6: Final answer
    x = 1,087.62

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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.