Home / 5,636.88-8,455.68-2,174.04

Finding the Fourth Proportional to 5,636.88, 8,455.68 and 2,174.04

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Solution

The fourth proportional to 5,636.88, 8,455.68 and 2,174.04 is: 3,261.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.88 : 8,455.68 = 2,174.04 : x
  2. Step 2: Convert to fraction form
    5,636.88/8,455.68 = 2,174.04/x
  3. Step 3: Cross multiply
    5,636.88x = 8,455.68 × 2,174.04
  4. Step 4: Simplify right side
    5,636.88x = 18,382,986.55
  5. Step 5: Solve for x
    x = 18,382,986.55/5,636.88
  6. Step 6: Final answer
    x = 3,261.20

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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.