Home / 8,121.29-12,181.93-2,277.95

Finding the Fourth Proportional to 8,121.29, 12,181.93 and 2,277.95

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Solution

The fourth proportional to 8,121.29, 12,181.93 and 2,277.95 is: 3,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.29 : 12,181.93 = 2,277.95 : x
  2. Step 2: Convert to fraction form
    8,121.29/12,181.93 = 2,277.95/x
  3. Step 3: Cross multiply
    8,121.29x = 12,181.93 × 2,277.95
  4. Step 4: Simplify right side
    8,121.29x = 27,749,760.84
  5. Step 5: Solve for x
    x = 27,749,760.84/8,121.29
  6. Step 6: Final answer
    x = 3,416.92

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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.