Home / 2,108.56-2,908.87-1,268.99

Finding the Fourth Proportional to 2,108.56, 2,908.87 and 1,268.99

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Solution

The fourth proportional to 2,108.56, 2,908.87 and 1,268.99 is: 1,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.56 : 2,908.87 = 1,268.99 : x
  2. Step 2: Convert to fraction form
    2,108.56/2,908.87 = 1,268.99/x
  3. Step 3: Cross multiply
    2,108.56x = 2,908.87 × 1,268.99
  4. Step 4: Simplify right side
    2,108.56x = 3,691,326.94
  5. Step 5: Solve for x
    x = 3,691,326.94/2,108.56
  6. Step 6: Final answer
    x = 1,750.64

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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.