Home / 5,212.23-7,190.82-3,219.30

Finding the Fourth Proportional to 5,212.23, 7,190.82 and 3,219.30

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Solution

The fourth proportional to 5,212.23, 7,190.82 and 3,219.30 is: 4,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.23 : 7,190.82 = 3,219.30 : x
  2. Step 2: Convert to fraction form
    5,212.23/7,190.82 = 3,219.30/x
  3. Step 3: Cross multiply
    5,212.23x = 7,190.82 × 3,219.30
  4. Step 4: Simplify right side
    5,212.23x = 23,149,406.83
  5. Step 5: Solve for x
    x = 23,149,406.83/5,212.23
  6. Step 6: Final answer
    x = 4,441.36

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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.