Home / 5,252.90-7,882.08-2,135.21

Finding the Fourth Proportional to 5,252.90, 7,882.08 and 2,135.21

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Solution

The fourth proportional to 5,252.90, 7,882.08 and 2,135.21 is: 3,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.90 : 7,882.08 = 2,135.21 : x
  2. Step 2: Convert to fraction form
    5,252.90/7,882.08 = 2,135.21/x
  3. Step 3: Cross multiply
    5,252.90x = 7,882.08 × 2,135.21
  4. Step 4: Simplify right side
    5,252.90x = 16,829,910.97
  5. Step 5: Solve for x
    x = 16,829,910.97/5,252.90
  6. Step 6: Final answer
    x = 3,203.93

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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.