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Finding the Fourth Proportional to 2,088.51, 3,133.37 and 855.96

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Solution

The fourth proportional to 2,088.51, 3,133.37 and 855.96 is: 1,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.51 : 3,133.37 = 855.96 : x
  2. Step 2: Convert to fraction form
    2,088.51/3,133.37 = 855.96/x
  3. Step 3: Cross multiply
    2,088.51x = 3,133.37 × 855.96
  4. Step 4: Simplify right side
    2,088.51x = 2,682,039.39
  5. Step 5: Solve for x
    x = 2,682,039.39/2,088.51
  6. Step 6: Final answer
    x = 1,284.19

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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.