Home / 5,515.85-8,274.84-1,819.14

Finding the Fourth Proportional to 5,515.85, 8,274.84 and 1,819.14

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Solution

The fourth proportional to 5,515.85, 8,274.84 and 1,819.14 is: 2,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.85 : 8,274.84 = 1,819.14 : x
  2. Step 2: Convert to fraction form
    5,515.85/8,274.84 = 1,819.14/x
  3. Step 3: Cross multiply
    5,515.85x = 8,274.84 × 1,819.14
  4. Step 4: Simplify right side
    5,515.85x = 15,053,092.44
  5. Step 5: Solve for x
    x = 15,053,092.44/5,515.85
  6. Step 6: Final answer
    x = 2,729.06

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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.