Home / 2,812.22-4,213.94-2,518.11

Finding the Fourth Proportional to 2,812.22, 4,213.94 and 2,518.11

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Solution

The fourth proportional to 2,812.22, 4,213.94 and 2,518.11 is: 3,773.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.22 : 4,213.94 = 2,518.11 : x
  2. Step 2: Convert to fraction form
    2,812.22/4,213.94 = 2,518.11/x
  3. Step 3: Cross multiply
    2,812.22x = 4,213.94 × 2,518.11
  4. Step 4: Simplify right side
    2,812.22x = 10,611,151.86
  5. Step 5: Solve for x
    x = 10,611,151.86/2,812.22
  6. Step 6: Final answer
    x = 3,773.24

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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.