Home / 3,102.15-4,279.57-1,843.26

Finding the Fourth Proportional to 3,102.15, 4,279.57 and 1,843.26

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Solution

The fourth proportional to 3,102.15, 4,279.57 and 1,843.26 is: 2,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.15 : 4,279.57 = 1,843.26 : x
  2. Step 2: Convert to fraction form
    3,102.15/4,279.57 = 1,843.26/x
  3. Step 3: Cross multiply
    3,102.15x = 4,279.57 × 1,843.26
  4. Step 4: Simplify right side
    3,102.15x = 7,888,360.20
  5. Step 5: Solve for x
    x = 7,888,360.20/3,102.15
  6. Step 6: Final answer
    x = 2,542.87

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1.5x scale

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.