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Finding the Fourth Proportional to 7,899.71, 11,850.84 and 2,969.73

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Solution

The fourth proportional to 7,899.71, 11,850.84 and 2,969.73 is: 4,455.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.71 : 11,850.84 = 2,969.73 : x
  2. Step 2: Convert to fraction form
    7,899.71/11,850.84 = 2,969.73/x
  3. Step 3: Cross multiply
    7,899.71x = 11,850.84 × 2,969.73
  4. Step 4: Simplify right side
    7,899.71x = 35,193,795.07
  5. Step 5: Solve for x
    x = 35,193,795.07/7,899.71
  6. Step 6: Final answer
    x = 4,455.08

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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.