Home / 3,105.43-4,284.58-1,845.85

Finding the Fourth Proportional to 3,105.43, 4,284.58 and 1,845.85

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Solution

The fourth proportional to 3,105.43, 4,284.58 and 1,845.85 is: 2,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.43 : 4,284.58 = 1,845.85 : x
  2. Step 2: Convert to fraction form
    3,105.43/4,284.58 = 1,845.85/x
  3. Step 3: Cross multiply
    3,105.43x = 4,284.58 × 1,845.85
  4. Step 4: Simplify right side
    3,105.43x = 7,908,661.34
  5. Step 5: Solve for x
    x = 7,908,661.34/3,105.43
  6. Step 6: Final answer
    x = 2,546.72

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Double scale
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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.