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Finding the Fourth Proportional to 6,440.46, 8,890.44 and 5,450.88

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Solution

The fourth proportional to 6,440.46, 8,890.44 and 5,450.88 is: 7,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.46 : 8,890.44 = 5,450.88 : x
  2. Step 2: Convert to fraction form
    6,440.46/8,890.44 = 5,450.88/x
  3. Step 3: Cross multiply
    6,440.46x = 8,890.44 × 5,450.88
  4. Step 4: Simplify right side
    6,440.46x = 48,460,721.59
  5. Step 5: Solve for x
    x = 48,460,721.59/6,440.46
  6. Step 6: Final answer
    x = 7,524.42

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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.