Home / 1,519.15-2,096.31-855.87

Finding the Fourth Proportional to 1,519.15, 2,096.31 and 855.87

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Solution

The fourth proportional to 1,519.15, 2,096.31 and 855.87 is: 1,181.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.15 : 2,096.31 = 855.87 : x
  2. Step 2: Convert to fraction form
    1,519.15/2,096.31 = 855.87/x
  3. Step 3: Cross multiply
    1,519.15x = 2,096.31 × 855.87
  4. Step 4: Simplify right side
    1,519.15x = 1,794,168.84
  5. Step 5: Solve for x
    x = 1,794,168.84/1,519.15
  6. Step 6: Final answer
    x = 1,181.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.