Home / 5,404.46-8,108.64-2,119.79

Finding the Fourth Proportional to 5,404.46, 8,108.64 and 2,119.79

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Solution

The fourth proportional to 5,404.46, 8,108.64 and 2,119.79 is: 3,180.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404.46 : 8,108.64 = 2,119.79 : x
  2. Step 2: Convert to fraction form
    5,404.46/8,108.64 = 2,119.79/x
  3. Step 3: Cross multiply
    5,404.46x = 8,108.64 × 2,119.79
  4. Step 4: Simplify right side
    5,404.46x = 17,188,634.26
  5. Step 5: Solve for x
    x = 17,188,634.26/5,404.46
  6. Step 6: Final answer
    x = 3,180.46

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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.