Home / 1,486.88-2,231.42-1,396.14

Finding the Fourth Proportional to 1,486.88, 2,231.42 and 1,396.14

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Solution

The fourth proportional to 1,486.88, 2,231.42 and 1,396.14 is: 2,095.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.88 : 2,231.42 = 1,396.14 : x
  2. Step 2: Convert to fraction form
    1,486.88/2,231.42 = 1,396.14/x
  3. Step 3: Cross multiply
    1,486.88x = 2,231.42 × 1,396.14
  4. Step 4: Simplify right side
    1,486.88x = 3,115,371.15
  5. Step 5: Solve for x
    x = 3,115,371.15/1,486.88
  6. Step 6: Final answer
    x = 2,095.24

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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.