Home / 5,485.18-8,228.22-2,196.48

Finding the Fourth Proportional to 5,485.18, 8,228.22 and 2,196.48

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Solution

The fourth proportional to 5,485.18, 8,228.22 and 2,196.48 is: 3,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.18 : 8,228.22 = 2,196.48 : x
  2. Step 2: Convert to fraction form
    5,485.18/8,228.22 = 2,196.48/x
  3. Step 3: Cross multiply
    5,485.18x = 8,228.22 × 2,196.48
  4. Step 4: Simplify right side
    5,485.18x = 18,073,120.67
  5. Step 5: Solve for x
    x = 18,073,120.67/5,485.18
  6. Step 6: Final answer
    x = 3,294.90

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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.