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Finding the Fourth Proportional to 3,841.28, 5,754.36 and 3,571.28

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Solution

The fourth proportional to 3,841.28, 5,754.36 and 3,571.28 is: 5,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.28 : 5,754.36 = 3,571.28 : x
  2. Step 2: Convert to fraction form
    3,841.28/5,754.36 = 3,571.28/x
  3. Step 3: Cross multiply
    3,841.28x = 5,754.36 × 3,571.28
  4. Step 4: Simplify right side
    3,841.28x = 20,550,430.78
  5. Step 5: Solve for x
    x = 20,550,430.78/3,841.28
  6. Step 6: Final answer
    x = 5,349.89

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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.