Home / 5,212.35-7,190.52-3,222.18

Finding the Fourth Proportional to 5,212.35, 7,190.52 and 3,222.18

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Solution

The fourth proportional to 5,212.35, 7,190.52 and 3,222.18 is: 4,445.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.35 : 7,190.52 = 3,222.18 : x
  2. Step 2: Convert to fraction form
    5,212.35/7,190.52 = 3,222.18/x
  3. Step 3: Cross multiply
    5,212.35x = 7,190.52 × 3,222.18
  4. Step 4: Simplify right side
    5,212.35x = 23,169,149.73
  5. Step 5: Solve for x
    x = 23,169,149.73/5,212.35
  6. Step 6: Final answer
    x = 4,445.05

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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.