Home / 3,682.40-5,081.25-2,489.99

Finding the Fourth Proportional to 3,682.40, 5,081.25 and 2,489.99

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Solution

The fourth proportional to 3,682.40, 5,081.25 and 2,489.99 is: 3,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.40 : 5,081.25 = 2,489.99 : x
  2. Step 2: Convert to fraction form
    3,682.40/5,081.25 = 2,489.99/x
  3. Step 3: Cross multiply
    3,682.40x = 5,081.25 × 2,489.99
  4. Step 4: Simplify right side
    3,682.40x = 12,652,236.28
  5. Step 5: Solve for x
    x = 12,652,236.28/3,682.40
  6. Step 6: Final answer
    x = 3,435.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.