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Finding the Fourth Proportional to 3,203.97, 4,808.10 and 1,123.98

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Solution

The fourth proportional to 3,203.97, 4,808.10 and 1,123.98 is: 1,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.97 : 4,808.10 = 1,123.98 : x
  2. Step 2: Convert to fraction form
    3,203.97/4,808.10 = 1,123.98/x
  3. Step 3: Cross multiply
    3,203.97x = 4,808.10 × 1,123.98
  4. Step 4: Simplify right side
    3,203.97x = 5,404,208.24
  5. Step 5: Solve for x
    x = 5,404,208.24/3,203.97
  6. Step 6: Final answer
    x = 1,686.72

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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.