Home / 5,790.62-8,683.86-2,091.90

Finding the Fourth Proportional to 5,790.62, 8,683.86 and 2,091.90

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Solution

The fourth proportional to 5,790.62, 8,683.86 and 2,091.90 is: 3,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,790.62 : 8,683.86 = 2,091.90 : x
  2. Step 2: Convert to fraction form
    5,790.62/8,683.86 = 2,091.90/x
  3. Step 3: Cross multiply
    5,790.62x = 8,683.86 × 2,091.90
  4. Step 4: Simplify right side
    5,790.62x = 18,165,766.73
  5. Step 5: Solve for x
    x = 18,165,766.73/5,790.62
  6. Step 6: Final answer
    x = 3,137.10

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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.