Home / 1,942.35-2,680.51-1,103.03

Finding the Fourth Proportional to 1,942.35, 2,680.51 and 1,103.03

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Solution

The fourth proportional to 1,942.35, 2,680.51 and 1,103.03 is: 1,522.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.35 : 2,680.51 = 1,103.03 : x
  2. Step 2: Convert to fraction form
    1,942.35/2,680.51 = 1,103.03/x
  3. Step 3: Cross multiply
    1,942.35x = 2,680.51 × 1,103.03
  4. Step 4: Simplify right side
    1,942.35x = 2,956,664.03
  5. Step 5: Solve for x
    x = 2,956,664.03/1,942.35
  6. Step 6: Final answer
    x = 1,522.21

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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.