Home / 7,131.09-10,696.45-1,936.83

Finding the Fourth Proportional to 7,131.09, 10,696.45 and 1,936.83

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Solution

The fourth proportional to 7,131.09, 10,696.45 and 1,936.83 is: 2,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.09 : 10,696.45 = 1,936.83 : x
  2. Step 2: Convert to fraction form
    7,131.09/10,696.45 = 1,936.83/x
  3. Step 3: Cross multiply
    7,131.09x = 10,696.45 × 1,936.83
  4. Step 4: Simplify right side
    7,131.09x = 20,717,205.25
  5. Step 5: Solve for x
    x = 20,717,205.25/7,131.09
  6. Step 6: Final answer
    x = 2,905.19

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Double scale
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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.