Home / 2,827.56-4,243.20-1,268.40

Finding the Fourth Proportional to 2,827.56, 4,243.20 and 1,268.40

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Solution

The fourth proportional to 2,827.56, 4,243.20 and 1,268.40 is: 1,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.56 : 4,243.20 = 1,268.40 : x
  2. Step 2: Convert to fraction form
    2,827.56/4,243.20 = 1,268.40/x
  3. Step 3: Cross multiply
    2,827.56x = 4,243.20 × 1,268.40
  4. Step 4: Simplify right side
    2,827.56x = 5,382,074.88
  5. Step 5: Solve for x
    x = 5,382,074.88/2,827.56
  6. Step 6: Final answer
    x = 1,903.43

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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.