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Finding the Fourth Proportional to 3,620.99, 4,996.15 and 2,205.41

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Solution

The fourth proportional to 3,620.99, 4,996.15 and 2,205.41 is: 3,042.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.99 : 4,996.15 = 2,205.41 : x
  2. Step 2: Convert to fraction form
    3,620.99/4,996.15 = 2,205.41/x
  3. Step 3: Cross multiply
    3,620.99x = 4,996.15 × 2,205.41
  4. Step 4: Simplify right side
    3,620.99x = 11,018,559.17
  5. Step 5: Solve for x
    x = 11,018,559.17/3,620.99
  6. Step 6: Final answer
    x = 3,042.97

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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.