Home / 1,975.93-2,727.68-1,268.80

Finding the Fourth Proportional to 1,975.93, 2,727.68 and 1,268.80

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Solution

The fourth proportional to 1,975.93, 2,727.68 and 1,268.80 is: 1,751.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,975.93 : 2,727.68 = 1,268.80 : x
  2. Step 2: Convert to fraction form
    1,975.93/2,727.68 = 1,268.80/x
  3. Step 3: Cross multiply
    1,975.93x = 2,727.68 × 1,268.80
  4. Step 4: Simplify right side
    1,975.93x = 3,460,867.22
  5. Step 5: Solve for x
    x = 3,460,867.22/1,975.93
  6. Step 6: Final answer
    x = 1,751.52

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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.