Home / 5,257.23-7,880.34-1,968.90

Finding the Fourth Proportional to 5,257.23, 7,880.34 and 1,968.90

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Solution

The fourth proportional to 5,257.23, 7,880.34 and 1,968.90 is: 2,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.23 : 7,880.34 = 1,968.90 : x
  2. Step 2: Convert to fraction form
    5,257.23/7,880.34 = 1,968.90/x
  3. Step 3: Cross multiply
    5,257.23x = 7,880.34 × 1,968.90
  4. Step 4: Simplify right side
    5,257.23x = 15,515,601.43
  5. Step 5: Solve for x
    x = 15,515,601.43/5,257.23
  6. Step 6: Final answer
    x = 2,951.29

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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.