Home / 7,936.61-11,908.89-3,260.09

Finding the Fourth Proportional to 7,936.61, 11,908.89 and 3,260.09

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Solution

The fourth proportional to 7,936.61, 11,908.89 and 3,260.09 is: 4,891.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.61 : 11,908.89 = 3,260.09 : x
  2. Step 2: Convert to fraction form
    7,936.61/11,908.89 = 3,260.09/x
  3. Step 3: Cross multiply
    7,936.61x = 11,908.89 × 3,260.09
  4. Step 4: Simplify right side
    7,936.61x = 38,824,053.20
  5. Step 5: Solve for x
    x = 38,824,053.20/7,936.61
  6. Step 6: Final answer
    x = 4,891.77

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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.