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Finding the Fourth Proportional to 4,995.18, 7,481.09 and 3,948.15

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Solution

The fourth proportional to 4,995.18, 7,481.09 and 3,948.15 is: 5,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995.18 : 7,481.09 = 3,948.15 : x
  2. Step 2: Convert to fraction form
    4,995.18/7,481.09 = 3,948.15/x
  3. Step 3: Cross multiply
    4,995.18x = 7,481.09 × 3,948.15
  4. Step 4: Simplify right side
    4,995.18x = 29,536,445.74
  5. Step 5: Solve for x
    x = 29,536,445.74/4,995.18
  6. Step 6: Final answer
    x = 5,912.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.