Home / 1,940.24-2,908.74-1,786.48

Finding the Fourth Proportional to 1,940.24, 2,908.74 and 1,786.48

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Solution

The fourth proportional to 1,940.24, 2,908.74 and 1,786.48 is: 2,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.24 : 2,908.74 = 1,786.48 : x
  2. Step 2: Convert to fraction form
    1,940.24/2,908.74 = 1,786.48/x
  3. Step 3: Cross multiply
    1,940.24x = 2,908.74 × 1,786.48
  4. Step 4: Simplify right side
    1,940.24x = 5,196,405.84
  5. Step 5: Solve for x
    x = 5,196,405.84/1,940.24
  6. Step 6: Final answer
    x = 2,678.23

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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.