Home / 5,511.15-8,260.50-2,739.80

Finding the Fourth Proportional to 5,511.15, 8,260.50 and 2,739.80

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Solution

The fourth proportional to 5,511.15, 8,260.50 and 2,739.80 is: 4,106.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.15 : 8,260.50 = 2,739.80 : x
  2. Step 2: Convert to fraction form
    5,511.15/8,260.50 = 2,739.80/x
  3. Step 3: Cross multiply
    5,511.15x = 8,260.50 × 2,739.80
  4. Step 4: Simplify right side
    5,511.15x = 22,632,117.90
  5. Step 5: Solve for x
    x = 22,632,117.90/5,511.15
  6. Step 6: Final answer
    x = 4,106.61

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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.