Home / 2,490.24-3,729.60-1,392.96

Finding the Fourth Proportional to 2,490.24, 3,729.60 and 1,392.96

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Solution

The fourth proportional to 2,490.24, 3,729.60 and 1,392.96 is: 2,086.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.24 : 3,729.60 = 1,392.96 : x
  2. Step 2: Convert to fraction form
    2,490.24/3,729.60 = 1,392.96/x
  3. Step 3: Cross multiply
    2,490.24x = 3,729.60 × 1,392.96
  4. Step 4: Simplify right side
    2,490.24x = 5,195,183.62
  5. Step 5: Solve for x
    x = 5,195,183.62/2,490.24
  6. Step 6: Final answer
    x = 2,086.22

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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.