Home / 1,908.93-2,632.38-1,279.37

Finding the Fourth Proportional to 1,908.93, 2,632.38 and 1,279.37

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Solution

The fourth proportional to 1,908.93, 2,632.38 and 1,279.37 is: 1,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.93 : 2,632.38 = 1,279.37 : x
  2. Step 2: Convert to fraction form
    1,908.93/2,632.38 = 1,279.37/x
  3. Step 3: Cross multiply
    1,908.93x = 2,632.38 × 1,279.37
  4. Step 4: Simplify right side
    1,908.93x = 3,367,774.84
  5. Step 5: Solve for x
    x = 3,367,774.84/1,908.93
  6. Step 6: Final answer
    x = 1,764.22

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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.