Home / 2,489.20-3,733.80-2,440.60

Finding the Fourth Proportional to 2,489.20, 3,733.80 and 2,440.60

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Solution

The fourth proportional to 2,489.20, 3,733.80 and 2,440.60 is: 3,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.20 : 3,733.80 = 2,440.60 : x
  2. Step 2: Convert to fraction form
    2,489.20/3,733.80 = 2,440.60/x
  3. Step 3: Cross multiply
    2,489.20x = 3,733.80 × 2,440.60
  4. Step 4: Simplify right side
    2,489.20x = 9,112,712.28
  5. Step 5: Solve for x
    x = 9,112,712.28/2,489.20
  6. Step 6: Final answer
    x = 3,660.90

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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.