Home / 1,902.08-2,625.21-1,105.65

Finding the Fourth Proportional to 1,902.08, 2,625.21 and 1,105.65

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Solution

The fourth proportional to 1,902.08, 2,625.21 and 1,105.65 is: 1,525.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.08 : 2,625.21 = 1,105.65 : x
  2. Step 2: Convert to fraction form
    1,902.08/2,625.21 = 1,105.65/x
  3. Step 3: Cross multiply
    1,902.08x = 2,625.21 × 1,105.65
  4. Step 4: Simplify right side
    1,902.08x = 2,902,563.44
  5. Step 5: Solve for x
    x = 2,902,563.44/1,902.08
  6. Step 6: Final answer
    x = 1,525.99

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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.