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Finding the Fourth Proportional to 4,939.22, 6,818.60 and 3,817.62

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Solution

The fourth proportional to 4,939.22, 6,818.60 and 3,817.62 is: 5,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.22 : 6,818.60 = 3,817.62 : x
  2. Step 2: Convert to fraction form
    4,939.22/6,818.60 = 3,817.62/x
  3. Step 3: Cross multiply
    4,939.22x = 6,818.60 × 3,817.62
  4. Step 4: Simplify right side
    4,939.22x = 26,030,823.73
  5. Step 5: Solve for x
    x = 26,030,823.73/4,939.22
  6. Step 6: Final answer
    x = 5,270.23

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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.