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Finding the Fourth Proportional to 3,992.91, 5,510.22 and 2,224.53

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Solution

The fourth proportional to 3,992.91, 5,510.22 and 2,224.53 is: 3,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.91 : 5,510.22 = 2,224.53 : x
  2. Step 2: Convert to fraction form
    3,992.91/5,510.22 = 2,224.53/x
  3. Step 3: Cross multiply
    3,992.91x = 5,510.22 × 2,224.53
  4. Step 4: Simplify right side
    3,992.91x = 12,257,649.70
  5. Step 5: Solve for x
    x = 12,257,649.70/3,992.91
  6. Step 6: Final answer
    x = 3,069.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.