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Finding the Fourth Proportional to 3,910.70, 5,858.20 and 1,827.84

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Solution

The fourth proportional to 3,910.70, 5,858.20 and 1,827.84 is: 2,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.70 : 5,858.20 = 1,827.84 : x
  2. Step 2: Convert to fraction form
    3,910.70/5,858.20 = 1,827.84/x
  3. Step 3: Cross multiply
    3,910.70x = 5,858.20 × 1,827.84
  4. Step 4: Simplify right side
    3,910.70x = 10,707,852.29
  5. Step 5: Solve for x
    x = 10,707,852.29/3,910.70
  6. Step 6: Final answer
    x = 2,738.09

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1.5x scale

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.