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Finding the Fourth Proportional to 6,454.40, 8,906.82 and 3,659.84

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Solution

The fourth proportional to 6,454.40, 8,906.82 and 3,659.84 is: 5,050.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,454.40 : 8,906.82 = 3,659.84 : x
  2. Step 2: Convert to fraction form
    6,454.40/8,906.82 = 3,659.84/x
  3. Step 3: Cross multiply
    6,454.40x = 8,906.82 × 3,659.84
  4. Step 4: Simplify right side
    6,454.40x = 32,597,536.11
  5. Step 5: Solve for x
    x = 32,597,536.11/6,454.40
  6. Step 6: Final answer
    x = 5,050.44

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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.