Home / 7,874.21-11,812.98-2,608.92

Finding the Fourth Proportional to 7,874.21, 11,812.98 and 2,608.92

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Solution

The fourth proportional to 7,874.21, 11,812.98 and 2,608.92 is: 3,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.21 : 11,812.98 = 2,608.92 : x
  2. Step 2: Convert to fraction form
    7,874.21/11,812.98 = 2,608.92/x
  3. Step 3: Cross multiply
    7,874.21x = 11,812.98 × 2,608.92
  4. Step 4: Simplify right side
    7,874.21x = 30,819,173.86
  5. Step 5: Solve for x
    x = 30,819,173.86/7,874.21
  6. Step 6: Final answer
    x = 3,913.94

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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.