Home / 3,609.64-5,407.48-2,218.88

Finding the Fourth Proportional to 3,609.64, 5,407.48 and 2,218.88

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Solution

The fourth proportional to 3,609.64, 5,407.48 and 2,218.88 is: 3,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.64 : 5,407.48 = 2,218.88 : x
  2. Step 2: Convert to fraction form
    3,609.64/5,407.48 = 2,218.88/x
  3. Step 3: Cross multiply
    3,609.64x = 5,407.48 × 2,218.88
  4. Step 4: Simplify right side
    3,609.64x = 11,998,549.22
  5. Step 5: Solve for x
    x = 11,998,549.22/3,609.64
  6. Step 6: Final answer
    x = 3,324.03

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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.