Home / 4,078.30-6,105.30-3,640.90

Finding the Fourth Proportional to 4,078.30, 6,105.30 and 3,640.90

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Solution

The fourth proportional to 4,078.30, 6,105.30 and 3,640.90 is: 5,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.30 : 6,105.30 = 3,640.90 : x
  2. Step 2: Convert to fraction form
    4,078.30/6,105.30 = 3,640.90/x
  3. Step 3: Cross multiply
    4,078.30x = 6,105.30 × 3,640.90
  4. Step 4: Simplify right side
    4,078.30x = 22,228,786.77
  5. Step 5: Solve for x
    x = 22,228,786.77/4,078.30
  6. Step 6: Final answer
    x = 5,450.50

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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.