Home / 5,198.46-7,794.05-1,911.13

Finding the Fourth Proportional to 5,198.46, 7,794.05 and 1,911.13

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Solution

The fourth proportional to 5,198.46, 7,794.05 and 1,911.13 is: 2,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.46 : 7,794.05 = 1,911.13 : x
  2. Step 2: Convert to fraction form
    5,198.46/7,794.05 = 1,911.13/x
  3. Step 3: Cross multiply
    5,198.46x = 7,794.05 × 1,911.13
  4. Step 4: Simplify right side
    5,198.46x = 14,895,413.74
  5. Step 5: Solve for x
    x = 14,895,413.74/5,198.46
  6. Step 6: Final answer
    x = 2,865.35

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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.