Home / 2,783.65-3,839.59-1,790.19

Finding the Fourth Proportional to 2,783.65, 3,839.59 and 1,790.19

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Solution

The fourth proportional to 2,783.65, 3,839.59 and 1,790.19 is: 2,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.65 : 3,839.59 = 1,790.19 : x
  2. Step 2: Convert to fraction form
    2,783.65/3,839.59 = 1,790.19/x
  3. Step 3: Cross multiply
    2,783.65x = 3,839.59 × 1,790.19
  4. Step 4: Simplify right side
    2,783.65x = 6,873,571.95
  5. Step 5: Solve for x
    x = 6,873,571.95/2,783.65
  6. Step 6: Final answer
    x = 2,469.27

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1.5x scale

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.