Home / 3,807.36-5,252.64-2,815.02

Finding the Fourth Proportional to 3,807.36, 5,252.64 and 2,815.02

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Solution

The fourth proportional to 3,807.36, 5,252.64 and 2,815.02 is: 3,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.36 : 5,252.64 = 2,815.02 : x
  2. Step 2: Convert to fraction form
    3,807.36/5,252.64 = 2,815.02/x
  3. Step 3: Cross multiply
    3,807.36x = 5,252.64 × 2,815.02
  4. Step 4: Simplify right side
    3,807.36x = 14,786,286.65
  5. Step 5: Solve for x
    x = 14,786,286.65/3,807.36
  6. Step 6: Final answer
    x = 3,883.61

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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.