Home / 2,399.18-3,311.16-1,351.31

Finding the Fourth Proportional to 2,399.18, 3,311.16 and 1,351.31

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Solution

The fourth proportional to 2,399.18, 3,311.16 and 1,351.31 is: 1,864.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.18 : 3,311.16 = 1,351.31 : x
  2. Step 2: Convert to fraction form
    2,399.18/3,311.16 = 1,351.31/x
  3. Step 3: Cross multiply
    2,399.18x = 3,311.16 × 1,351.31
  4. Step 4: Simplify right side
    2,399.18x = 4,474,403.62
  5. Step 5: Solve for x
    x = 4,474,403.62/2,399.18
  6. Step 6: Final answer
    x = 1,864.97

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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.