Home / 1,942.33-2,679.83-1,755.22

Finding the Fourth Proportional to 1,942.33, 2,679.83 and 1,755.22

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Solution

The fourth proportional to 1,942.33, 2,679.83 and 1,755.22 is: 2,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.33 : 2,679.83 = 1,755.22 : x
  2. Step 2: Convert to fraction form
    1,942.33/2,679.83 = 1,755.22/x
  3. Step 3: Cross multiply
    1,942.33x = 2,679.83 × 1,755.22
  4. Step 4: Simplify right side
    1,942.33x = 4,703,675.74
  5. Step 5: Solve for x
    x = 4,703,675.74/1,942.33
  6. Step 6: Final answer
    x = 2,421.67

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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.