Home / 9,131.05-13,696.50-2,891.07

Finding the Fourth Proportional to 9,131.05, 13,696.50 and 2,891.07

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Solution

The fourth proportional to 9,131.05, 13,696.50 and 2,891.07 is: 4,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.05 : 13,696.50 = 2,891.07 : x
  2. Step 2: Convert to fraction form
    9,131.05/13,696.50 = 2,891.07/x
  3. Step 3: Cross multiply
    9,131.05x = 13,696.50 × 2,891.07
  4. Step 4: Simplify right side
    9,131.05x = 39,597,540.26
  5. Step 5: Solve for x
    x = 39,597,540.26/9,131.05
  6. Step 6: Final answer
    x = 4,336.58

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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.