Home / 5,460.90-8,179.20-4,221.60

Finding the Fourth Proportional to 5,460.90, 8,179.20 and 4,221.60

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Solution

The fourth proportional to 5,460.90, 8,179.20 and 4,221.60 is: 6,323.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.90 : 8,179.20 = 4,221.60 : x
  2. Step 2: Convert to fraction form
    5,460.90/8,179.20 = 4,221.60/x
  3. Step 3: Cross multiply
    5,460.90x = 8,179.20 × 4,221.60
  4. Step 4: Simplify right side
    5,460.90x = 34,529,310.72
  5. Step 5: Solve for x
    x = 34,529,310.72/5,460.90
  6. Step 6: Final answer
    x = 6,323.01

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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.