Home / 5,522.40-8,278.20-2,231.10

Finding the Fourth Proportional to 5,522.40, 8,278.20 and 2,231.10

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Solution

The fourth proportional to 5,522.40, 8,278.20 and 2,231.10 is: 3,344.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,522.40 : 8,278.20 = 2,231.10 : x
  2. Step 2: Convert to fraction form
    5,522.40/8,278.20 = 2,231.10/x
  3. Step 3: Cross multiply
    5,522.40x = 8,278.20 × 2,231.10
  4. Step 4: Simplify right side
    5,522.40x = 18,469,492.02
  5. Step 5: Solve for x
    x = 18,469,492.02/5,522.40
  6. Step 6: Final answer
    x = 3,344.47

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1.5x scale

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.