Home / 4,106.80-6,160.20-3,185.20

Finding the Fourth Proportional to 4,106.80, 6,160.20 and 3,185.20

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Solution

The fourth proportional to 4,106.80, 6,160.20 and 3,185.20 is: 4,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,106.80 : 6,160.20 = 3,185.20 : x
  2. Step 2: Convert to fraction form
    4,106.80/6,160.20 = 3,185.20/x
  3. Step 3: Cross multiply
    4,106.80x = 6,160.20 × 3,185.20
  4. Step 4: Simplify right side
    4,106.80x = 19,621,469.04
  5. Step 5: Solve for x
    x = 19,621,469.04/4,106.80
  6. Step 6: Final answer
    x = 4,777.80

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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.