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Finding the Fourth Proportional to 3,151.66, 4,728.17 and 960.33

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Solution

The fourth proportional to 3,151.66, 4,728.17 and 960.33 is: 1,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.66 : 4,728.17 = 960.33 : x
  2. Step 2: Convert to fraction form
    3,151.66/4,728.17 = 960.33/x
  3. Step 3: Cross multiply
    3,151.66x = 4,728.17 × 960.33
  4. Step 4: Simplify right side
    3,151.66x = 4,540,605.90
  5. Step 5: Solve for x
    x = 4,540,605.90/3,151.66
  6. Step 6: Final answer
    x = 1,440.70

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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.