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Finding the Fourth Proportional to 6,374.41, 8,794.30 and 4,136.78

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Solution

The fourth proportional to 6,374.41, 8,794.30 and 4,136.78 is: 5,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.41 : 8,794.30 = 4,136.78 : x
  2. Step 2: Convert to fraction form
    6,374.41/8,794.30 = 4,136.78/x
  3. Step 3: Cross multiply
    6,374.41x = 8,794.30 × 4,136.78
  4. Step 4: Simplify right side
    6,374.41x = 36,380,084.35
  5. Step 5: Solve for x
    x = 36,380,084.35/6,374.41
  6. Step 6: Final answer
    x = 5,707.21

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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.