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Finding the Fourth Proportional to 6,376.88, 8,797.56 and 3,894.32

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Solution

The fourth proportional to 6,376.88, 8,797.56 and 3,894.32 is: 5,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.88 : 8,797.56 = 3,894.32 : x
  2. Step 2: Convert to fraction form
    6,376.88/8,797.56 = 3,894.32/x
  3. Step 3: Cross multiply
    6,376.88x = 8,797.56 × 3,894.32
  4. Step 4: Simplify right side
    6,376.88x = 34,260,513.86
  5. Step 5: Solve for x
    x = 34,260,513.86/6,376.88
  6. Step 6: Final answer
    x = 5,372.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.