Home / 4,074.92-6,110.31-1,991.80

Finding the Fourth Proportional to 4,074.92, 6,110.31 and 1,991.80

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Solution

The fourth proportional to 4,074.92, 6,110.31 and 1,991.80 is: 2,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,074.92 : 6,110.31 = 1,991.80 : x
  2. Step 2: Convert to fraction form
    4,074.92/6,110.31 = 1,991.80/x
  3. Step 3: Cross multiply
    4,074.92x = 6,110.31 × 1,991.80
  4. Step 4: Simplify right side
    4,074.92x = 12,170,530.57
  5. Step 5: Solve for x
    x = 12,170,530.57/4,074.92
  6. Step 6: Final answer
    x = 2,986.69

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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.