Home / 1,336.12-2,006.34-1,279.96

Finding the Fourth Proportional to 1,336.12, 2,006.34 and 1,279.96

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Solution

The fourth proportional to 1,336.12, 2,006.34 and 1,279.96 is: 1,922.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.12 : 2,006.34 = 1,279.96 : x
  2. Step 2: Convert to fraction form
    1,336.12/2,006.34 = 1,279.96/x
  3. Step 3: Cross multiply
    1,336.12x = 2,006.34 × 1,279.96
  4. Step 4: Simplify right side
    1,336.12x = 2,568,025.13
  5. Step 5: Solve for x
    x = 2,568,025.13/1,336.12
  6. Step 6: Final answer
    x = 1,922.01

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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.