Home / 4,105.60-6,145.98-2,645.80

Finding the Fourth Proportional to 4,105.60, 6,145.98 and 2,645.80

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Solution

The fourth proportional to 4,105.60, 6,145.98 and 2,645.80 is: 3,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.60 : 6,145.98 = 2,645.80 : x
  2. Step 2: Convert to fraction form
    4,105.60/6,145.98 = 2,645.80/x
  3. Step 3: Cross multiply
    4,105.60x = 6,145.98 × 2,645.80
  4. Step 4: Simplify right side
    4,105.60x = 16,261,033.88
  5. Step 5: Solve for x
    x = 16,261,033.88/4,105.60
  6. Step 6: Final answer
    x = 3,960.70

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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.