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Finding the Fourth Proportional to 5,518.59, 8,276.07 and 1,819.92

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Solution

The fourth proportional to 5,518.59, 8,276.07 and 1,819.92 is: 2,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.59 : 8,276.07 = 1,819.92 : x
  2. Step 2: Convert to fraction form
    5,518.59/8,276.07 = 1,819.92/x
  3. Step 3: Cross multiply
    5,518.59x = 8,276.07 × 1,819.92
  4. Step 4: Simplify right side
    5,518.59x = 15,061,785.31
  5. Step 5: Solve for x
    x = 15,061,785.31/5,518.59
  6. Step 6: Final answer
    x = 2,729.28

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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.