Home / 3,018.88-4,517.76-2,817.28

Finding the Fourth Proportional to 3,018.88, 4,517.76 and 2,817.28

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Solution

The fourth proportional to 3,018.88, 4,517.76 and 2,817.28 is: 4,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.88 : 4,517.76 = 2,817.28 : x
  2. Step 2: Convert to fraction form
    3,018.88/4,517.76 = 2,817.28/x
  3. Step 3: Cross multiply
    3,018.88x = 4,517.76 × 2,817.28
  4. Step 4: Simplify right side
    3,018.88x = 12,727,794.89
  5. Step 5: Solve for x
    x = 12,727,794.89/3,018.88
  6. Step 6: Final answer
    x = 4,216.07

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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.