Home / 5,485.15-8,223.09-2,196.44

Finding the Fourth Proportional to 5,485.15, 8,223.09 and 2,196.44

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Solution

The fourth proportional to 5,485.15, 8,223.09 and 2,196.44 is: 3,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.15 : 8,223.09 = 2,196.44 : x
  2. Step 2: Convert to fraction form
    5,485.15/8,223.09 = 2,196.44/x
  3. Step 3: Cross multiply
    5,485.15x = 8,223.09 × 2,196.44
  4. Step 4: Simplify right side
    5,485.15x = 18,061,523.80
  5. Step 5: Solve for x
    x = 18,061,523.80/5,485.15
  6. Step 6: Final answer
    x = 3,292.80

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1.5x scale

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.