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Finding the Fourth Proportional to 7,090.14, 10,635.21 and 3,189.99

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Solution

The fourth proportional to 7,090.14, 10,635.21 and 3,189.99 is: 4,784.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.14 : 10,635.21 = 3,189.99 : x
  2. Step 2: Convert to fraction form
    7,090.14/10,635.21 = 3,189.99/x
  3. Step 3: Cross multiply
    7,090.14x = 10,635.21 × 3,189.99
  4. Step 4: Simplify right side
    7,090.14x = 33,926,213.55
  5. Step 5: Solve for x
    x = 33,926,213.55/7,090.14
  6. Step 6: Final answer
    x = 4,784.99

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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.