Home / 5,452.44-8,179.86-1,989.60

Finding the Fourth Proportional to 5,452.44, 8,179.86 and 1,989.60

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Solution

The fourth proportional to 5,452.44, 8,179.86 and 1,989.60 is: 2,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,452.44 : 8,179.86 = 1,989.60 : x
  2. Step 2: Convert to fraction form
    5,452.44/8,179.86 = 1,989.60/x
  3. Step 3: Cross multiply
    5,452.44x = 8,179.86 × 1,989.60
  4. Step 4: Simplify right side
    5,452.44x = 16,274,649.46
  5. Step 5: Solve for x
    x = 16,274,649.46/5,452.44
  6. Step 6: Final answer
    x = 2,984.84

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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.