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Finding the Fourth Proportional to 3,969.97, 5,956.97 and 1,889.59

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Solution

The fourth proportional to 3,969.97, 5,956.97 and 1,889.59 is: 2,835.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.97 : 5,956.97 = 1,889.59 : x
  2. Step 2: Convert to fraction form
    3,969.97/5,956.97 = 1,889.59/x
  3. Step 3: Cross multiply
    3,969.97x = 5,956.97 × 1,889.59
  4. Step 4: Simplify right side
    3,969.97x = 11,256,206.33
  5. Step 5: Solve for x
    x = 11,256,206.33/3,969.97
  6. Step 6: Final answer
    x = 2,835.34

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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.