Home / 2,653.96-3,961.32-2,489.80

Finding the Fourth Proportional to 2,653.96, 3,961.32 and 2,489.80

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Solution

The fourth proportional to 2,653.96, 3,961.32 and 2,489.80 is: 3,716.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.96 : 3,961.32 = 2,489.80 : x
  2. Step 2: Convert to fraction form
    2,653.96/3,961.32 = 2,489.80/x
  3. Step 3: Cross multiply
    2,653.96x = 3,961.32 × 2,489.80
  4. Step 4: Simplify right side
    2,653.96x = 9,862,894.54
  5. Step 5: Solve for x
    x = 9,862,894.54/2,653.96
  6. Step 6: Final answer
    x = 3,716.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.