Home / 6,121.24-8,447.22-3,603.64

Finding the Fourth Proportional to 6,121.24, 8,447.22 and 3,603.64

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Solution

The fourth proportional to 6,121.24, 8,447.22 and 3,603.64 is: 4,972.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.24 : 8,447.22 = 3,603.64 : x
  2. Step 2: Convert to fraction form
    6,121.24/8,447.22 = 3,603.64/x
  3. Step 3: Cross multiply
    6,121.24x = 8,447.22 × 3,603.64
  4. Step 4: Simplify right side
    6,121.24x = 30,440,739.88
  5. Step 5: Solve for x
    x = 30,440,739.88/6,121.24
  6. Step 6: Final answer
    x = 4,972.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.