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Finding the Fourth Proportional to 6,999.79, 10,498.78 and 2,069.95

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Solution

The fourth proportional to 6,999.79, 10,498.78 and 2,069.95 is: 3,104.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.79 : 10,498.78 = 2,069.95 : x
  2. Step 2: Convert to fraction form
    6,999.79/10,498.78 = 2,069.95/x
  3. Step 3: Cross multiply
    6,999.79x = 10,498.78 × 2,069.95
  4. Step 4: Simplify right side
    6,999.79x = 21,731,949.66
  5. Step 5: Solve for x
    x = 21,731,949.66/6,999.79
  6. Step 6: Final answer
    x = 3,104.66

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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.