Home / 5,121.96-7,054.50-4,422.12

Finding the Fourth Proportional to 5,121.96, 7,054.50 and 4,422.12

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Solution

The fourth proportional to 5,121.96, 7,054.50 and 4,422.12 is: 6,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.96 : 7,054.50 = 4,422.12 : x
  2. Step 2: Convert to fraction form
    5,121.96/7,054.50 = 4,422.12/x
  3. Step 3: Cross multiply
    5,121.96x = 7,054.50 × 4,422.12
  4. Step 4: Simplify right side
    5,121.96x = 31,195,845.54
  5. Step 5: Solve for x
    x = 31,195,845.54/5,121.96
  6. Step 6: Final answer
    x = 6,090.61

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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.