Home / 2,489.96-3,727.91-1,317.30

Finding the Fourth Proportional to 2,489.96, 3,727.91 and 1,317.30

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Solution

The fourth proportional to 2,489.96, 3,727.91 and 1,317.30 is: 1,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.96 : 3,727.91 = 1,317.30 : x
  2. Step 2: Convert to fraction form
    2,489.96/3,727.91 = 1,317.30/x
  3. Step 3: Cross multiply
    2,489.96x = 3,727.91 × 1,317.30
  4. Step 4: Simplify right side
    2,489.96x = 4,910,769.26
  5. Step 5: Solve for x
    x = 4,910,769.26/2,489.96
  6. Step 6: Final answer
    x = 1,972.23

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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.