Home / 5,518.80-8,273.40-3,325.20

Finding the Fourth Proportional to 5,518.80, 8,273.40 and 3,325.20

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Solution

The fourth proportional to 5,518.80, 8,273.40 and 3,325.20 is: 4,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.80 : 8,273.40 = 3,325.20 : x
  2. Step 2: Convert to fraction form
    5,518.80/8,273.40 = 3,325.20/x
  3. Step 3: Cross multiply
    5,518.80x = 8,273.40 × 3,325.20
  4. Step 4: Simplify right side
    5,518.80x = 27,510,709.68
  5. Step 5: Solve for x
    x = 27,510,709.68/5,518.80
  6. Step 6: Final answer
    x = 4,984.91

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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.