Home / 7,431.83-11,147.99-2,753.02

Finding the Fourth Proportional to 7,431.83, 11,147.99 and 2,753.02

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Solution

The fourth proportional to 7,431.83, 11,147.99 and 2,753.02 is: 4,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.83 : 11,147.99 = 2,753.02 : x
  2. Step 2: Convert to fraction form
    7,431.83/11,147.99 = 2,753.02/x
  3. Step 3: Cross multiply
    7,431.83x = 11,147.99 × 2,753.02
  4. Step 4: Simplify right side
    7,431.83x = 30,690,639.43
  5. Step 5: Solve for x
    x = 30,690,639.43/7,431.83
  6. Step 6: Final answer
    x = 4,129.62

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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.