Home / 2,836.79-4,252.03-2,141.21

Finding the Fourth Proportional to 2,836.79, 4,252.03 and 2,141.21

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Solution

The fourth proportional to 2,836.79, 4,252.03 and 2,141.21 is: 3,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.79 : 4,252.03 = 2,141.21 : x
  2. Step 2: Convert to fraction form
    2,836.79/4,252.03 = 2,141.21/x
  3. Step 3: Cross multiply
    2,836.79x = 4,252.03 × 2,141.21
  4. Step 4: Simplify right side
    2,836.79x = 9,104,467.90
  5. Step 5: Solve for x
    x = 9,104,467.90/2,836.79
  6. Step 6: Final answer
    x = 3,209.43

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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.