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Finding the Fourth Proportional to 6,446.88, 9,671.04 and 3,946.86

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Solution

The fourth proportional to 6,446.88, 9,671.04 and 3,946.86 is: 5,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446.88 : 9,671.04 = 3,946.86 : x
  2. Step 2: Convert to fraction form
    6,446.88/9,671.04 = 3,946.86/x
  3. Step 3: Cross multiply
    6,446.88x = 9,671.04 × 3,946.86
  4. Step 4: Simplify right side
    6,446.88x = 38,170,240.93
  5. Step 5: Solve for x
    x = 38,170,240.93/6,446.88
  6. Step 6: Final answer
    x = 5,920.73

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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.