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Finding the Fourth Proportional to 6,392.06, 8,820.28 and 3,558.73

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Solution

The fourth proportional to 6,392.06, 8,820.28 and 3,558.73 is: 4,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.06 : 8,820.28 = 3,558.73 : x
  2. Step 2: Convert to fraction form
    6,392.06/8,820.28 = 3,558.73/x
  3. Step 3: Cross multiply
    6,392.06x = 8,820.28 × 3,558.73
  4. Step 4: Simplify right side
    6,392.06x = 31,388,964.10
  5. Step 5: Solve for x
    x = 31,388,964.10/6,392.06
  6. Step 6: Final answer
    x = 4,910.62

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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.