Home / 1,903.16-2,853.24-1,279.09

Finding the Fourth Proportional to 1,903.16, 2,853.24 and 1,279.09

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Solution

The fourth proportional to 1,903.16, 2,853.24 and 1,279.09 is: 1,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.16 : 2,853.24 = 1,279.09 : x
  2. Step 2: Convert to fraction form
    1,903.16/2,853.24 = 1,279.09/x
  3. Step 3: Cross multiply
    1,903.16x = 2,853.24 × 1,279.09
  4. Step 4: Simplify right side
    1,903.16x = 3,649,550.75
  5. Step 5: Solve for x
    x = 3,649,550.75/1,903.16
  6. Step 6: Final answer
    x = 1,917.63

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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.