Home / 1,940.43-2,681.60-1,724.43

Finding the Fourth Proportional to 1,940.43, 2,681.60 and 1,724.43

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Solution

The fourth proportional to 1,940.43, 2,681.60 and 1,724.43 is: 2,383.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.43 : 2,681.60 = 1,724.43 : x
  2. Step 2: Convert to fraction form
    1,940.43/2,681.60 = 1,724.43/x
  3. Step 3: Cross multiply
    1,940.43x = 2,681.60 × 1,724.43
  4. Step 4: Simplify right side
    1,940.43x = 4,624,222.87
  5. Step 5: Solve for x
    x = 4,624,222.87/1,940.43
  6. Step 6: Final answer
    x = 2,383.09

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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.