Home / 6,121.96-8,448.36-3,469.34

Finding the Fourth Proportional to 6,121.96, 8,448.36 and 3,469.34

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Solution

The fourth proportional to 6,121.96, 8,448.36 and 3,469.34 is: 4,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.96 : 8,448.36 = 3,469.34 : x
  2. Step 2: Convert to fraction form
    6,121.96/8,448.36 = 3,469.34/x
  3. Step 3: Cross multiply
    6,121.96x = 8,448.36 × 3,469.34
  4. Step 4: Simplify right side
    6,121.96x = 29,310,233.28
  5. Step 5: Solve for x
    x = 29,310,233.28/6,121.96
  6. Step 6: Final answer
    x = 4,787.72

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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.