Home / 5,518.36-8,276.62-1,820.64

Finding the Fourth Proportional to 5,518.36, 8,276.62 and 1,820.64

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Solution

The fourth proportional to 5,518.36, 8,276.62 and 1,820.64 is: 2,730.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.36 : 8,276.62 = 1,820.64 : x
  2. Step 2: Convert to fraction form
    5,518.36/8,276.62 = 1,820.64/x
  3. Step 3: Cross multiply
    5,518.36x = 8,276.62 × 1,820.64
  4. Step 4: Simplify right side
    5,518.36x = 15,068,745.44
  5. Step 5: Solve for x
    x = 15,068,745.44/5,518.36
  6. Step 6: Final answer
    x = 2,730.66

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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.