Home / 3,185.78-4,779.27-1,236.92

Finding the Fourth Proportional to 3,185.78, 4,779.27 and 1,236.92

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Solution

The fourth proportional to 3,185.78, 4,779.27 and 1,236.92 is: 1,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.78 : 4,779.27 = 1,236.92 : x
  2. Step 2: Convert to fraction form
    3,185.78/4,779.27 = 1,236.92/x
  3. Step 3: Cross multiply
    3,185.78x = 4,779.27 × 1,236.92
  4. Step 4: Simplify right side
    3,185.78x = 5,911,550.75
  5. Step 5: Solve for x
    x = 5,911,550.75/3,185.78
  6. Step 6: Final answer
    x = 1,855.61

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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.