Home / 2,981.28-4,469.88-1,517.60

Finding the Fourth Proportional to 2,981.28, 4,469.88 and 1,517.60

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Solution

The fourth proportional to 2,981.28, 4,469.88 and 1,517.60 is: 2,275.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.28 : 4,469.88 = 1,517.60 : x
  2. Step 2: Convert to fraction form
    2,981.28/4,469.88 = 1,517.60/x
  3. Step 3: Cross multiply
    2,981.28x = 4,469.88 × 1,517.60
  4. Step 4: Simplify right side
    2,981.28x = 6,783,489.89
  5. Step 5: Solve for x
    x = 6,783,489.89/2,981.28
  6. Step 6: Final answer
    x = 2,275.36

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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.