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Finding the Fourth Proportional to 3,177.28, 4,764.72 and 1,533.28

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Solution

The fourth proportional to 3,177.28, 4,764.72 and 1,533.28 is: 2,299.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.28 : 4,764.72 = 1,533.28 : x
  2. Step 2: Convert to fraction form
    3,177.28/4,764.72 = 1,533.28/x
  3. Step 3: Cross multiply
    3,177.28x = 4,764.72 × 1,533.28
  4. Step 4: Simplify right side
    3,177.28x = 7,305,649.88
  5. Step 5: Solve for x
    x = 7,305,649.88/3,177.28
  6. Step 6: Final answer
    x = 2,299.34

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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.