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Finding the Fourth Proportional to 7,694.78, 11,538.99 and 2,950.20

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Solution

The fourth proportional to 7,694.78, 11,538.99 and 2,950.20 is: 4,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,694.78 : 11,538.99 = 2,950.20 : x
  2. Step 2: Convert to fraction form
    7,694.78/11,538.99 = 2,950.20/x
  3. Step 3: Cross multiply
    7,694.78x = 11,538.99 × 2,950.20
  4. Step 4: Simplify right side
    7,694.78x = 34,042,328.30
  5. Step 5: Solve for x
    x = 34,042,328.30/7,694.78
  6. Step 6: Final answer
    x = 4,424.08

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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.