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Finding the Fourth Proportional to 3,152.28, 4,728.88 and 960.96

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Solution

The fourth proportional to 3,152.28, 4,728.88 and 960.96 is: 1,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.28 : 4,728.88 = 960.96 : x
  2. Step 2: Convert to fraction form
    3,152.28/4,728.88 = 960.96/x
  3. Step 3: Cross multiply
    3,152.28x = 4,728.88 × 960.96
  4. Step 4: Simplify right side
    3,152.28x = 4,544,264.52
  5. Step 5: Solve for x
    x = 4,544,264.52/3,152.28
  6. Step 6: Final answer
    x = 1,441.58

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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.