Home / 3,185.94-4,779.21-1,336.80

Finding the Fourth Proportional to 3,185.94, 4,779.21 and 1,336.80

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Solution

The fourth proportional to 3,185.94, 4,779.21 and 1,336.80 is: 2,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.94 : 4,779.21 = 1,336.80 : x
  2. Step 2: Convert to fraction form
    3,185.94/4,779.21 = 1,336.80/x
  3. Step 3: Cross multiply
    3,185.94x = 4,779.21 × 1,336.80
  4. Step 4: Simplify right side
    3,185.94x = 6,388,847.93
  5. Step 5: Solve for x
    x = 6,388,847.93/3,185.94
  6. Step 6: Final answer
    x = 2,005.33

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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.