Home / 5,470.56-8,200.80-2,181.60

Finding the Fourth Proportional to 5,470.56, 8,200.80 and 2,181.60

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Solution

The fourth proportional to 5,470.56, 8,200.80 and 2,181.60 is: 3,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.56 : 8,200.80 = 2,181.60 : x
  2. Step 2: Convert to fraction form
    5,470.56/8,200.80 = 2,181.60/x
  3. Step 3: Cross multiply
    5,470.56x = 8,200.80 × 2,181.60
  4. Step 4: Simplify right side
    5,470.56x = 17,890,865.28
  5. Step 5: Solve for x
    x = 17,890,865.28/5,470.56
  6. Step 6: Final answer
    x = 3,270.39

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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.