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Finding the Fourth Proportional to 3,311.58, 4,570.09 and 1,819.55

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Solution

The fourth proportional to 3,311.58, 4,570.09 and 1,819.55 is: 2,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.58 : 4,570.09 = 1,819.55 : x
  2. Step 2: Convert to fraction form
    3,311.58/4,570.09 = 1,819.55/x
  3. Step 3: Cross multiply
    3,311.58x = 4,570.09 × 1,819.55
  4. Step 4: Simplify right side
    3,311.58x = 8,315,488.43
  5. Step 5: Solve for x
    x = 8,315,488.43/3,311.58
  6. Step 6: Final answer
    x = 2,511.03

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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.