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Finding the Fourth Proportional to 7,135.98, 10,704.98 and 2,206.05

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Solution

The fourth proportional to 7,135.98, 10,704.98 and 2,206.05 is: 3,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.98 : 10,704.98 = 2,206.05 : x
  2. Step 2: Convert to fraction form
    7,135.98/10,704.98 = 2,206.05/x
  3. Step 3: Cross multiply
    7,135.98x = 10,704.98 × 2,206.05
  4. Step 4: Simplify right side
    7,135.98x = 23,615,721.13
  5. Step 5: Solve for x
    x = 23,615,721.13/7,135.98
  6. Step 6: Final answer
    x = 3,309.39

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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.