Home / 2,786.95-4,181.10-1,396.83

Finding the Fourth Proportional to 2,786.95, 4,181.10 and 1,396.83

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Solution

The fourth proportional to 2,786.95, 4,181.10 and 1,396.83 is: 2,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.95 : 4,181.10 = 1,396.83 : x
  2. Step 2: Convert to fraction form
    2,786.95/4,181.10 = 1,396.83/x
  3. Step 3: Cross multiply
    2,786.95x = 4,181.10 × 1,396.83
  4. Step 4: Simplify right side
    2,786.95x = 5,840,278.93
  5. Step 5: Solve for x
    x = 5,840,278.93/2,786.95
  6. Step 6: Final answer
    x = 2,095.58

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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.