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Finding the Fourth Proportional to 3,152.32, 4,728.50 and 961.03

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Solution

The fourth proportional to 3,152.32, 4,728.50 and 961.03 is: 1,441.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,152.32 : 4,728.50 = 961.03 : x
  2. Step 2: Convert to fraction form
    3,152.32/4,728.50 = 961.03/x
  3. Step 3: Cross multiply
    3,152.32x = 4,728.50 × 961.03
  4. Step 4: Simplify right side
    3,152.32x = 4,544,230.36
  5. Step 5: Solve for x
    x = 4,544,230.36/3,152.32
  6. Step 6: Final answer
    x = 1,441.55

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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.