Home / 5,228.37-7,212.71-3,238.20

Finding the Fourth Proportional to 5,228.37, 7,212.71 and 3,238.20

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Solution

The fourth proportional to 5,228.37, 7,212.71 and 3,238.20 is: 4,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.37 : 7,212.71 = 3,238.20 : x
  2. Step 2: Convert to fraction form
    5,228.37/7,212.71 = 3,238.20/x
  3. Step 3: Cross multiply
    5,228.37x = 7,212.71 × 3,238.20
  4. Step 4: Simplify right side
    5,228.37x = 23,356,205.62
  5. Step 5: Solve for x
    x = 23,356,205.62/5,228.37
  6. Step 6: Final answer
    x = 4,467.21

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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.