Home / 6,111.92-9,169.14-2,778.57

Finding the Fourth Proportional to 6,111.92, 9,169.14 and 2,778.57

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Solution

The fourth proportional to 6,111.92, 9,169.14 and 2,778.57 is: 4,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.92 : 9,169.14 = 2,778.57 : x
  2. Step 2: Convert to fraction form
    6,111.92/9,169.14 = 2,778.57/x
  3. Step 3: Cross multiply
    6,111.92x = 9,169.14 × 2,778.57
  4. Step 4: Simplify right side
    6,111.92x = 25,477,097.33
  5. Step 5: Solve for x
    x = 25,477,097.33/6,111.92
  6. Step 6: Final answer
    x = 4,168.43

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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.