Home / 2,828.10-4,242.60-1,183.80

Finding the Fourth Proportional to 2,828.10, 4,242.60 and 1,183.80

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Solution

The fourth proportional to 2,828.10, 4,242.60 and 1,183.80 is: 1,775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.10 : 4,242.60 = 1,183.80 : x
  2. Step 2: Convert to fraction form
    2,828.10/4,242.60 = 1,183.80/x
  3. Step 3: Cross multiply
    2,828.10x = 4,242.60 × 1,183.80
  4. Step 4: Simplify right side
    2,828.10x = 5,022,389.88
  5. Step 5: Solve for x
    x = 5,022,389.88/2,828.10
  6. Step 6: Final answer
    x = 1,775.89

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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.