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Finding the Fourth Proportional to 6,446.62, 8,891.61 and 4,054.27

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Solution

The fourth proportional to 6,446.62, 8,891.61 and 4,054.27 is: 5,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446.62 : 8,891.61 = 4,054.27 : x
  2. Step 2: Convert to fraction form
    6,446.62/8,891.61 = 4,054.27/x
  3. Step 3: Cross multiply
    6,446.62x = 8,891.61 × 4,054.27
  4. Step 4: Simplify right side
    6,446.62x = 36,048,987.67
  5. Step 5: Solve for x
    x = 36,048,987.67/6,446.62
  6. Step 6: Final answer
    x = 5,591.92

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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.