Home / 5,212.43-7,185.74-3,221.85

Finding the Fourth Proportional to 5,212.43, 7,185.74 and 3,221.85

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Solution

The fourth proportional to 5,212.43, 7,185.74 and 3,221.85 is: 4,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.43 : 7,185.74 = 3,221.85 : x
  2. Step 2: Convert to fraction form
    5,212.43/7,185.74 = 3,221.85/x
  3. Step 3: Cross multiply
    5,212.43x = 7,185.74 × 3,221.85
  4. Step 4: Simplify right side
    5,212.43x = 23,151,360.31
  5. Step 5: Solve for x
    x = 23,151,360.31/5,212.43
  6. Step 6: Final answer
    x = 4,441.57

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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.