Home / 5,412.22-8,109.42-3,218.20

Finding the Fourth Proportional to 5,412.22, 8,109.42 and 3,218.20

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Solution

The fourth proportional to 5,412.22, 8,109.42 and 3,218.20 is: 4,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.22 : 8,109.42 = 3,218.20 : x
  2. Step 2: Convert to fraction form
    5,412.22/8,109.42 = 3,218.20/x
  3. Step 3: Cross multiply
    5,412.22x = 8,109.42 × 3,218.20
  4. Step 4: Simplify right side
    5,412.22x = 26,097,735.44
  5. Step 5: Solve for x
    x = 26,097,735.44/5,412.22
  6. Step 6: Final answer
    x = 4,822.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.