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Finding the Fourth Proportional to 7,090.92, 10,636.12 and 2,874.03

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Solution

The fourth proportional to 7,090.92, 10,636.12 and 2,874.03 is: 4,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.92 : 10,636.12 = 2,874.03 : x
  2. Step 2: Convert to fraction form
    7,090.92/10,636.12 = 2,874.03/x
  3. Step 3: Cross multiply
    7,090.92x = 10,636.12 × 2,874.03
  4. Step 4: Simplify right side
    7,090.92x = 30,568,460.41
  5. Step 5: Solve for x
    x = 30,568,460.41/7,090.92
  6. Step 6: Final answer
    x = 4,310.93

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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.