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Finding the Fourth Proportional to 7,951.42, 11,923.12 and 3,270.12

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Solution

The fourth proportional to 7,951.42, 11,923.12 and 3,270.12 is: 4,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.42 : 11,923.12 = 3,270.12 : x
  2. Step 2: Convert to fraction form
    7,951.42/11,923.12 = 3,270.12/x
  3. Step 3: Cross multiply
    7,951.42x = 11,923.12 × 3,270.12
  4. Step 4: Simplify right side
    7,951.42x = 38,990,033.17
  5. Step 5: Solve for x
    x = 38,990,033.17/7,951.42
  6. Step 6: Final answer
    x = 4,903.53

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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.