Home / 6,940.81-9,578.09-3,796.79

Finding the Fourth Proportional to 6,940.81, 9,578.09 and 3,796.79

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Solution

The fourth proportional to 6,940.81, 9,578.09 and 3,796.79 is: 5,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.81 : 9,578.09 = 3,796.79 : x
  2. Step 2: Convert to fraction form
    6,940.81/9,578.09 = 3,796.79/x
  3. Step 3: Cross multiply
    6,940.81x = 9,578.09 × 3,796.79
  4. Step 4: Simplify right side
    6,940.81x = 36,366,029.77
  5. Step 5: Solve for x
    x = 36,366,029.77/6,940.81
  6. Step 6: Final answer
    x = 5,239.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.