Home / 7,860.46-11,790.69-2,664.94

Finding the Fourth Proportional to 7,860.46, 11,790.69 and 2,664.94

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Solution

The fourth proportional to 7,860.46, 11,790.69 and 2,664.94 is: 3,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.46 : 11,790.69 = 2,664.94 : x
  2. Step 2: Convert to fraction form
    7,860.46/11,790.69 = 2,664.94/x
  3. Step 3: Cross multiply
    7,860.46x = 11,790.69 × 2,664.94
  4. Step 4: Simplify right side
    7,860.46x = 31,421,481.41
  5. Step 5: Solve for x
    x = 31,421,481.41/7,860.46
  6. Step 6: Final answer
    x = 3,997.41

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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.