Home / 5,427.20-7,489.56-3,069.80

Finding the Fourth Proportional to 5,427.20, 7,489.56 and 3,069.80

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Solution

The fourth proportional to 5,427.20, 7,489.56 and 3,069.80 is: 4,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.20 : 7,489.56 = 3,069.80 : x
  2. Step 2: Convert to fraction form
    5,427.20/7,489.56 = 3,069.80/x
  3. Step 3: Cross multiply
    5,427.20x = 7,489.56 × 3,069.80
  4. Step 4: Simplify right side
    5,427.20x = 22,991,453.44
  5. Step 5: Solve for x
    x = 22,991,453.44/5,427.20
  6. Step 6: Final answer
    x = 4,236.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.