Home / 2,999.20-4,490.24-2,383.78

Finding the Fourth Proportional to 2,999.20, 4,490.24 and 2,383.78

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Solution

The fourth proportional to 2,999.20, 4,490.24 and 2,383.78 is: 3,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.20 : 4,490.24 = 2,383.78 : x
  2. Step 2: Convert to fraction form
    2,999.20/4,490.24 = 2,383.78/x
  3. Step 3: Cross multiply
    2,999.20x = 4,490.24 × 2,383.78
  4. Step 4: Simplify right side
    2,999.20x = 10,703,744.31
  5. Step 5: Solve for x
    x = 10,703,744.31/2,999.20
  6. Step 6: Final answer
    x = 3,568.87

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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.