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Finding the Fourth Proportional to 2,203.98, 3,306 and 743.22

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Solution

The fourth proportional to 2,203.98, 3,306 and 743.22 is: 1,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.98 : 3,306 = 743.22 : x
  2. Step 2: Convert to fraction form
    2,203.98/3,306 = 743.22/x
  3. Step 3: Cross multiply
    2,203.98x = 3,306 × 743.22
  4. Step 4: Simplify right side
    2,203.98x = 2,457,085.32
  5. Step 5: Solve for x
    x = 2,457,085.32/2,203.98
  6. Step 6: Final answer
    x = 1,114.84

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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.