Home / 5,644.10-8,464.64-2,131.85

Finding the Fourth Proportional to 5,644.10, 8,464.64 and 2,131.85

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Solution

The fourth proportional to 5,644.10, 8,464.64 and 2,131.85 is: 3,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.10 : 8,464.64 = 2,131.85 : x
  2. Step 2: Convert to fraction form
    5,644.10/8,464.64 = 2,131.85/x
  3. Step 3: Cross multiply
    5,644.10x = 8,464.64 × 2,131.85
  4. Step 4: Simplify right side
    5,644.10x = 18,045,289.80
  5. Step 5: Solve for x
    x = 18,045,289.80/5,644.10
  6. Step 6: Final answer
    x = 3,197.20

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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.