Home / 2,399.40-3,311.08-1,351.44

Finding the Fourth Proportional to 2,399.40, 3,311.08 and 1,351.44

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Solution

The fourth proportional to 2,399.40, 3,311.08 and 1,351.44 is: 1,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.40 : 3,311.08 = 1,351.44 : x
  2. Step 2: Convert to fraction form
    2,399.40/3,311.08 = 1,351.44/x
  3. Step 3: Cross multiply
    2,399.40x = 3,311.08 × 1,351.44
  4. Step 4: Simplify right side
    2,399.40x = 4,474,725.96
  5. Step 5: Solve for x
    x = 4,474,725.96/2,399.40
  6. Step 6: Final answer
    x = 1,864.94

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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.