Home / 4,086.17-6,127.80-2,109.70

Finding the Fourth Proportional to 4,086.17, 6,127.80 and 2,109.70

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Solution

The fourth proportional to 4,086.17, 6,127.80 and 2,109.70 is: 3,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.17 : 6,127.80 = 2,109.70 : x
  2. Step 2: Convert to fraction form
    4,086.17/6,127.80 = 2,109.70/x
  3. Step 3: Cross multiply
    4,086.17x = 6,127.80 × 2,109.70
  4. Step 4: Simplify right side
    4,086.17x = 12,927,819.66
  5. Step 5: Solve for x
    x = 12,927,819.66/4,086.17
  6. Step 6: Final answer
    x = 3,163.80

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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.