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Finding the Fourth Proportional to 1,936.92, 2,674.92 and 1,274.28

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Solution

The fourth proportional to 1,936.92, 2,674.92 and 1,274.28 is: 1,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.92 : 2,674.92 = 1,274.28 : x
  2. Step 2: Convert to fraction form
    1,936.92/2,674.92 = 1,274.28/x
  3. Step 3: Cross multiply
    1,936.92x = 2,674.92 × 1,274.28
  4. Step 4: Simplify right side
    1,936.92x = 3,408,597.06
  5. Step 5: Solve for x
    x = 3,408,597.06/1,936.92
  6. Step 6: Final answer
    x = 1,759.80

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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.