Home / 2,276.48-3,414.12-815.42

Finding the Fourth Proportional to 2,276.48, 3,414.12 and 815.42

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Solution

The fourth proportional to 2,276.48, 3,414.12 and 815.42 is: 1,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.48 : 3,414.12 = 815.42 : x
  2. Step 2: Convert to fraction form
    2,276.48/3,414.12 = 815.42/x
  3. Step 3: Cross multiply
    2,276.48x = 3,414.12 × 815.42
  4. Step 4: Simplify right side
    2,276.48x = 2,783,924.66
  5. Step 5: Solve for x
    x = 2,783,924.66/2,276.48
  6. Step 6: Final answer
    x = 1,222.91

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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.