Home / 2,664.26-3,996.24-815.36

Finding the Fourth Proportional to 2,664.26, 3,996.24 and 815.36

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Solution

The fourth proportional to 2,664.26, 3,996.24 and 815.36 is: 1,222.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.26 : 3,996.24 = 815.36 : x
  2. Step 2: Convert to fraction form
    2,664.26/3,996.24 = 815.36/x
  3. Step 3: Cross multiply
    2,664.26x = 3,996.24 × 815.36
  4. Step 4: Simplify right side
    2,664.26x = 3,258,374.25
  5. Step 5: Solve for x
    x = 3,258,374.25/2,664.26
  6. Step 6: Final answer
    x = 1,222.99

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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.