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Finding the Fourth Proportional to 6,449.22, 8,901.81 and 4,211.44

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Solution

The fourth proportional to 6,449.22, 8,901.81 and 4,211.44 is: 5,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.22 : 8,901.81 = 4,211.44 : x
  2. Step 2: Convert to fraction form
    6,449.22/8,901.81 = 4,211.44/x
  3. Step 3: Cross multiply
    6,449.22x = 8,901.81 × 4,211.44
  4. Step 4: Simplify right side
    6,449.22x = 37,489,416.12
  5. Step 5: Solve for x
    x = 37,489,416.12/6,449.22
  6. Step 6: Final answer
    x = 5,813.02

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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.