Home / 3,945.22-5,444.32-2,176.82

Finding the Fourth Proportional to 3,945.22, 5,444.32 and 2,176.82

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Solution

The fourth proportional to 3,945.22, 5,444.32 and 2,176.82 is: 3,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.22 : 5,444.32 = 2,176.82 : x
  2. Step 2: Convert to fraction form
    3,945.22/5,444.32 = 2,176.82/x
  3. Step 3: Cross multiply
    3,945.22x = 5,444.32 × 2,176.82
  4. Step 4: Simplify right side
    3,945.22x = 11,851,304.66
  5. Step 5: Solve for x
    x = 11,851,304.66/3,945.22
  6. Step 6: Final answer
    x = 3,003.97

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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.