Home / 5,456.22-8,184.06-2,169.78

Finding the Fourth Proportional to 5,456.22, 8,184.06 and 2,169.78

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Solution

The fourth proportional to 5,456.22, 8,184.06 and 2,169.78 is: 3,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.22 : 8,184.06 = 2,169.78 : x
  2. Step 2: Convert to fraction form
    5,456.22/8,184.06 = 2,169.78/x
  3. Step 3: Cross multiply
    5,456.22x = 8,184.06 × 2,169.78
  4. Step 4: Simplify right side
    5,456.22x = 17,757,609.71
  5. Step 5: Solve for x
    x = 17,757,609.71/5,456.22
  6. Step 6: Final answer
    x = 3,254.56

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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.