Home / 2,279.70-3,146.03-1,336.05

Finding the Fourth Proportional to 2,279.70, 3,146.03 and 1,336.05

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Solution

The fourth proportional to 2,279.70, 3,146.03 and 1,336.05 is: 1,843.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.70 : 3,146.03 = 1,336.05 : x
  2. Step 2: Convert to fraction form
    2,279.70/3,146.03 = 1,336.05/x
  3. Step 3: Cross multiply
    2,279.70x = 3,146.03 × 1,336.05
  4. Step 4: Simplify right side
    2,279.70x = 4,203,246.70
  5. Step 5: Solve for x
    x = 4,203,246.70/2,279.70
  6. Step 6: Final answer
    x = 1,843.77

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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.