Home / 5,205.09-7,180.98-3,212.19

Finding the Fourth Proportional to 5,205.09, 7,180.98 and 3,212.19

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Solution

The fourth proportional to 5,205.09, 7,180.98 and 3,212.19 is: 4,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.09 : 7,180.98 = 3,212.19 : x
  2. Step 2: Convert to fraction form
    5,205.09/7,180.98 = 3,212.19/x
  3. Step 3: Cross multiply
    5,205.09x = 7,180.98 × 3,212.19
  4. Step 4: Simplify right side
    5,205.09x = 23,066,672.15
  5. Step 5: Solve for x
    x = 23,066,672.15/5,205.09
  6. Step 6: Final answer
    x = 4,431.56

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Half scale
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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.