Home / 2,764.92-3,815.62-1,505.98

Finding the Fourth Proportional to 2,764.92, 3,815.62 and 1,505.98

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Solution

The fourth proportional to 2,764.92, 3,815.62 and 1,505.98 is: 2,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.92 : 3,815.62 = 1,505.98 : x
  2. Step 2: Convert to fraction form
    2,764.92/3,815.62 = 1,505.98/x
  3. Step 3: Cross multiply
    2,764.92x = 3,815.62 × 1,505.98
  4. Step 4: Simplify right side
    2,764.92x = 5,746,247.41
  5. Step 5: Solve for x
    x = 5,746,247.41/2,764.92
  6. Step 6: Final answer
    x = 2,078.27

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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.