Home / 2,549.11-3,821.40-905.44

Finding the Fourth Proportional to 2,549.11, 3,821.40 and 905.44

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Solution

The fourth proportional to 2,549.11, 3,821.40 and 905.44 is: 1,357.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.11 : 3,821.40 = 905.44 : x
  2. Step 2: Convert to fraction form
    2,549.11/3,821.40 = 905.44/x
  3. Step 3: Cross multiply
    2,549.11x = 3,821.40 × 905.44
  4. Step 4: Simplify right side
    2,549.11x = 3,460,048.42
  5. Step 5: Solve for x
    x = 3,460,048.42/2,549.11
  6. Step 6: Final answer
    x = 1,357.36

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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.