Home / 1,976.40-2,727.95-1,268.73

Finding the Fourth Proportional to 1,976.40, 2,727.95 and 1,268.73

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Solution

The fourth proportional to 1,976.40, 2,727.95 and 1,268.73 is: 1,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.40 : 2,727.95 = 1,268.73 : x
  2. Step 2: Convert to fraction form
    1,976.40/2,727.95 = 1,268.73/x
  3. Step 3: Cross multiply
    1,976.40x = 2,727.95 × 1,268.73
  4. Step 4: Simplify right side
    1,976.40x = 3,461,025.66
  5. Step 5: Solve for x
    x = 3,461,025.66/1,976.40
  6. Step 6: Final answer
    x = 1,751.18

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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.