Home / 5,460.08-8,190.63-2,172.44

Finding the Fourth Proportional to 5,460.08, 8,190.63 and 2,172.44

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Solution

The fourth proportional to 5,460.08, 8,190.63 and 2,172.44 is: 3,258.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.08 : 8,190.63 = 2,172.44 : x
  2. Step 2: Convert to fraction form
    5,460.08/8,190.63 = 2,172.44/x
  3. Step 3: Cross multiply
    5,460.08x = 8,190.63 × 2,172.44
  4. Step 4: Simplify right side
    5,460.08x = 17,793,611.28
  5. Step 5: Solve for x
    x = 17,793,611.28/5,460.08
  6. Step 6: Final answer
    x = 3,258.86

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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.