Home / 2,764.78-3,815.24-1,569.44

Finding the Fourth Proportional to 2,764.78, 3,815.24 and 1,569.44

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Solution

The fourth proportional to 2,764.78, 3,815.24 and 1,569.44 is: 2,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.78 : 3,815.24 = 1,569.44 : x
  2. Step 2: Convert to fraction form
    2,764.78/3,815.24 = 1,569.44/x
  3. Step 3: Cross multiply
    2,764.78x = 3,815.24 × 1,569.44
  4. Step 4: Simplify right side
    2,764.78x = 5,987,803.73
  5. Step 5: Solve for x
    x = 5,987,803.73/2,764.78
  6. Step 6: Final answer
    x = 2,165.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.