Home / 3,587.94-5,382.12-1,279.44

Finding the Fourth Proportional to 3,587.94, 5,382.12 and 1,279.44

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Solution

The fourth proportional to 3,587.94, 5,382.12 and 1,279.44 is: 1,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.94 : 5,382.12 = 1,279.44 : x
  2. Step 2: Convert to fraction form
    3,587.94/5,382.12 = 1,279.44/x
  3. Step 3: Cross multiply
    3,587.94x = 5,382.12 × 1,279.44
  4. Step 4: Simplify right side
    3,587.94x = 6,886,093.22
  5. Step 5: Solve for x
    x = 6,886,093.22/3,587.94
  6. Step 6: Final answer
    x = 1,919.23

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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.