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Finding the Fourth Proportional to 3,571.44, 5,352.24 and 1,928.88

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Solution

The fourth proportional to 3,571.44, 5,352.24 and 1,928.88 is: 2,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.44 : 5,352.24 = 1,928.88 : x
  2. Step 2: Convert to fraction form
    3,571.44/5,352.24 = 1,928.88/x
  3. Step 3: Cross multiply
    3,571.44x = 5,352.24 × 1,928.88
  4. Step 4: Simplify right side
    3,571.44x = 10,323,828.69
  5. Step 5: Solve for x
    x = 10,323,828.69/3,571.44
  6. Step 6: Final answer
    x = 2,890.66

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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.