Home / 2,199.92-3,299.67-1,105

Finding the Fourth Proportional to 2,199.92, 3,299.67 and 1,105

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Solution

The fourth proportional to 2,199.92, 3,299.67 and 1,105 is: 1,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.92 : 3,299.67 = 1,105 : x
  2. Step 2: Convert to fraction form
    2,199.92/3,299.67 = 1,105/x
  3. Step 3: Cross multiply
    2,199.92x = 3,299.67 × 1,105
  4. Step 4: Simplify right side
    2,199.92x = 3,646,135.35
  5. Step 5: Solve for x
    x = 3,646,135.35/2,199.92
  6. Step 6: Final answer
    x = 1,657.39

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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.