Home / 2,269.20-3,405.04-1,115.04

Finding the Fourth Proportional to 2,269.20, 3,405.04 and 1,115.04

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Solution

The fourth proportional to 2,269.20, 3,405.04 and 1,115.04 is: 1,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.20 : 3,405.04 = 1,115.04 : x
  2. Step 2: Convert to fraction form
    2,269.20/3,405.04 = 1,115.04/x
  3. Step 3: Cross multiply
    2,269.20x = 3,405.04 × 1,115.04
  4. Step 4: Simplify right side
    2,269.20x = 3,796,755.80
  5. Step 5: Solve for x
    x = 3,796,755.80/2,269.20
  6. Step 6: Final answer
    x = 1,673.17

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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.