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Finding the Fourth Proportional to 7,131.70, 10,698.69 and 2,200.18

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Solution

The fourth proportional to 7,131.70, 10,698.69 and 2,200.18 is: 3,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.70 : 10,698.69 = 2,200.18 : x
  2. Step 2: Convert to fraction form
    7,131.70/10,698.69 = 2,200.18/x
  3. Step 3: Cross multiply
    7,131.70x = 10,698.69 × 2,200.18
  4. Step 4: Simplify right side
    7,131.70x = 23,539,043.76
  5. Step 5: Solve for x
    x = 23,539,043.76/7,131.70
  6. Step 6: Final answer
    x = 3,300.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.