Home / 7,828.21-11,734.92-2,630.44

Finding the Fourth Proportional to 7,828.21, 11,734.92 and 2,630.44

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Solution

The fourth proportional to 7,828.21, 11,734.92 and 2,630.44 is: 3,943.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.21 : 11,734.92 = 2,630.44 : x
  2. Step 2: Convert to fraction form
    7,828.21/11,734.92 = 2,630.44/x
  3. Step 3: Cross multiply
    7,828.21x = 11,734.92 × 2,630.44
  4. Step 4: Simplify right side
    7,828.21x = 30,868,002.96
  5. Step 5: Solve for x
    x = 30,868,002.96/7,828.21
  6. Step 6: Final answer
    x = 3,943.18

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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.