Home / 5,180.46-7,149.21-3,163.40

Finding the Fourth Proportional to 5,180.46, 7,149.21 and 3,163.40

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Solution

The fourth proportional to 5,180.46, 7,149.21 and 3,163.40 is: 4,365.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.46 : 7,149.21 = 3,163.40 : x
  2. Step 2: Convert to fraction form
    5,180.46/7,149.21 = 3,163.40/x
  3. Step 3: Cross multiply
    5,180.46x = 7,149.21 × 3,163.40
  4. Step 4: Simplify right side
    5,180.46x = 22,615,848.12
  5. Step 5: Solve for x
    x = 22,615,848.12/5,180.46
  6. Step 6: Final answer
    x = 4,365.61

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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.