Home / 1,789.95-2,687.22-1,379.37

Finding the Fourth Proportional to 1,789.95, 2,687.22 and 1,379.37

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Solution

The fourth proportional to 1,789.95, 2,687.22 and 1,379.37 is: 2,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.95 : 2,687.22 = 1,379.37 : x
  2. Step 2: Convert to fraction form
    1,789.95/2,687.22 = 1,379.37/x
  3. Step 3: Cross multiply
    1,789.95x = 2,687.22 × 1,379.37
  4. Step 4: Simplify right side
    1,789.95x = 3,706,670.65
  5. Step 5: Solve for x
    x = 3,706,670.65/1,789.95
  6. Step 6: Final answer
    x = 2,070.82

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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.