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Finding the Fourth Proportional to 7,899.30, 11,850.60 and 2,634.10

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Solution

The fourth proportional to 7,899.30, 11,850.60 and 2,634.10 is: 3,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.30 : 11,850.60 = 2,634.10 : x
  2. Step 2: Convert to fraction form
    7,899.30/11,850.60 = 2,634.10/x
  3. Step 3: Cross multiply
    7,899.30x = 11,850.60 × 2,634.10
  4. Step 4: Simplify right side
    7,899.30x = 31,215,665.46
  5. Step 5: Solve for x
    x = 31,215,665.46/7,899.30
  6. Step 6: Final answer
    x = 3,951.70

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1.5x scale

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.