Home / 3,234.70-4,849.18-1,915.21

Finding the Fourth Proportional to 3,234.70, 4,849.18 and 1,915.21

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Solution

The fourth proportional to 3,234.70, 4,849.18 and 1,915.21 is: 2,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.70 : 4,849.18 = 1,915.21 : x
  2. Step 2: Convert to fraction form
    3,234.70/4,849.18 = 1,915.21/x
  3. Step 3: Cross multiply
    3,234.70x = 4,849.18 × 1,915.21
  4. Step 4: Simplify right side
    3,234.70x = 9,287,181.12
  5. Step 5: Solve for x
    x = 9,287,181.12/3,234.70
  6. Step 6: Final answer
    x = 2,871.11

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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.