Home / 1,860.94-2,792.58-1,081.31

Finding the Fourth Proportional to 1,860.94, 2,792.58 and 1,081.31

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Solution

The fourth proportional to 1,860.94, 2,792.58 and 1,081.31 is: 1,622.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.94 : 2,792.58 = 1,081.31 : x
  2. Step 2: Convert to fraction form
    1,860.94/2,792.58 = 1,081.31/x
  3. Step 3: Cross multiply
    1,860.94x = 2,792.58 × 1,081.31
  4. Step 4: Simplify right side
    1,860.94x = 3,019,653.14
  5. Step 5: Solve for x
    x = 3,019,653.14/1,860.94
  6. Step 6: Final answer
    x = 1,622.65

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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.