Home / 5,228.21-7,224.27-3,889.22

Finding the Fourth Proportional to 5,228.21, 7,224.27 and 3,889.22

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Solution

The fourth proportional to 5,228.21, 7,224.27 and 3,889.22 is: 5,374.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.21 : 7,224.27 = 3,889.22 : x
  2. Step 2: Convert to fraction form
    5,228.21/7,224.27 = 3,889.22/x
  3. Step 3: Cross multiply
    5,228.21x = 7,224.27 × 3,889.22
  4. Step 4: Simplify right side
    5,228.21x = 28,096,739.25
  5. Step 5: Solve for x
    x = 28,096,739.25/5,228.21
  6. Step 6: Final answer
    x = 5,374.07

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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.