Home / 1,504.82-2,257.20-409.20

Finding the Fourth Proportional to 1,504.82, 2,257.20 and 409.20

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Solution

The fourth proportional to 1,504.82, 2,257.20 and 409.20 is: 613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.82 : 2,257.20 = 409.20 : x
  2. Step 2: Convert to fraction form
    1,504.82/2,257.20 = 409.20/x
  3. Step 3: Cross multiply
    1,504.82x = 2,257.20 × 409.20
  4. Step 4: Simplify right side
    1,504.82x = 923,646.24
  5. Step 5: Solve for x
    x = 923,646.24/1,504.82
  6. Step 6: Final answer
    x = 613.79

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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.