Home / 5,121.16-7,676.94-4,664.66

Finding the Fourth Proportional to 5,121.16, 7,676.94 and 4,664.66

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Solution

The fourth proportional to 5,121.16, 7,676.94 and 4,664.66 is: 6,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.16 : 7,676.94 = 4,664.66 : x
  2. Step 2: Convert to fraction form
    5,121.16/7,676.94 = 4,664.66/x
  3. Step 3: Cross multiply
    5,121.16x = 7,676.94 × 4,664.66
  4. Step 4: Simplify right side
    5,121.16x = 35,810,314.94
  5. Step 5: Solve for x
    x = 35,810,314.94/5,121.16
  6. Step 6: Final answer
    x = 6,992.62

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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.