Home / 1,945.23-2,911.44-1,872.96

Finding the Fourth Proportional to 1,945.23, 2,911.44 and 1,872.96

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Solution

The fourth proportional to 1,945.23, 2,911.44 and 1,872.96 is: 2,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.23 : 2,911.44 = 1,872.96 : x
  2. Step 2: Convert to fraction form
    1,945.23/2,911.44 = 1,872.96/x
  3. Step 3: Cross multiply
    1,945.23x = 2,911.44 × 1,872.96
  4. Step 4: Simplify right side
    1,945.23x = 5,453,019.05
  5. Step 5: Solve for x
    x = 5,453,019.05/1,945.23
  6. Step 6: Final answer
    x = 2,803.27

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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.