Home / 2,788.38-4,183.28-1,968.26

Finding the Fourth Proportional to 2,788.38, 4,183.28 and 1,968.26

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Solution

The fourth proportional to 2,788.38, 4,183.28 and 1,968.26 is: 2,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.38 : 4,183.28 = 1,968.26 : x
  2. Step 2: Convert to fraction form
    2,788.38/4,183.28 = 1,968.26/x
  3. Step 3: Cross multiply
    2,788.38x = 4,183.28 × 1,968.26
  4. Step 4: Simplify right side
    2,788.38x = 8,233,782.69
  5. Step 5: Solve for x
    x = 8,233,782.69/2,788.38
  6. Step 6: Final answer
    x = 2,952.89

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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.