Home / 1,902.21-2,853.48-1,081.17

Finding the Fourth Proportional to 1,902.21, 2,853.48 and 1,081.17

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Solution

The fourth proportional to 1,902.21, 2,853.48 and 1,081.17 is: 1,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.21 : 2,853.48 = 1,081.17 : x
  2. Step 2: Convert to fraction form
    1,902.21/2,853.48 = 1,081.17/x
  3. Step 3: Cross multiply
    1,902.21x = 2,853.48 × 1,081.17
  4. Step 4: Simplify right side
    1,902.21x = 3,085,096.97
  5. Step 5: Solve for x
    x = 3,085,096.97/1,902.21
  6. Step 6: Final answer
    x = 1,621.85

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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.