Home / 3,108.93-4,288.19-2,976.09

Finding the Fourth Proportional to 3,108.93, 4,288.19 and 2,976.09

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Solution

The fourth proportional to 3,108.93, 4,288.19 and 2,976.09 is: 4,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.93 : 4,288.19 = 2,976.09 : x
  2. Step 2: Convert to fraction form
    3,108.93/4,288.19 = 2,976.09/x
  3. Step 3: Cross multiply
    3,108.93x = 4,288.19 × 2,976.09
  4. Step 4: Simplify right side
    3,108.93x = 12,762,024.50
  5. Step 5: Solve for x
    x = 12,762,024.50/3,108.93
  6. Step 6: Final answer
    x = 4,104.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.