Home / 1,690.08-2,537.82-1,273.65

Finding the Fourth Proportional to 1,690.08, 2,537.82 and 1,273.65

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Solution

The fourth proportional to 1,690.08, 2,537.82 and 1,273.65 is: 1,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.08 : 2,537.82 = 1,273.65 : x
  2. Step 2: Convert to fraction form
    1,690.08/2,537.82 = 1,273.65/x
  3. Step 3: Cross multiply
    1,690.08x = 2,537.82 × 1,273.65
  4. Step 4: Simplify right side
    1,690.08x = 3,232,294.44
  5. Step 5: Solve for x
    x = 3,232,294.44/1,690.08
  6. Step 6: Final answer
    x = 1,912.51

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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.