Home / 2,786.10-4,174.68-1,954.74

Finding the Fourth Proportional to 2,786.10, 4,174.68 and 1,954.74

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Solution

The fourth proportional to 2,786.10, 4,174.68 and 1,954.74 is: 2,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.10 : 4,174.68 = 1,954.74 : x
  2. Step 2: Convert to fraction form
    2,786.10/4,174.68 = 1,954.74/x
  3. Step 3: Cross multiply
    2,786.10x = 4,174.68 × 1,954.74
  4. Step 4: Simplify right side
    2,786.10x = 8,160,413.98
  5. Step 5: Solve for x
    x = 8,160,413.98/2,786.10
  6. Step 6: Final answer
    x = 2,928.97

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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.