Home / 1,860.96-2,791.92-1,314.21

Finding the Fourth Proportional to 1,860.96, 2,791.92 and 1,314.21

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Solution

The fourth proportional to 1,860.96, 2,791.92 and 1,314.21 is: 1,971.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.96 : 2,791.92 = 1,314.21 : x
  2. Step 2: Convert to fraction form
    1,860.96/2,791.92 = 1,314.21/x
  3. Step 3: Cross multiply
    1,860.96x = 2,791.92 × 1,314.21
  4. Step 4: Simplify right side
    1,860.96x = 3,669,169.18
  5. Step 5: Solve for x
    x = 3,669,169.18/1,860.96
  6. Step 6: Final answer
    x = 1,971.65

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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.