Home / 3,945.58-5,444.97-2,177.22

Finding the Fourth Proportional to 3,945.58, 5,444.97 and 2,177.22

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Solution

The fourth proportional to 3,945.58, 5,444.97 and 2,177.22 is: 3,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.58 : 5,444.97 = 2,177.22 : x
  2. Step 2: Convert to fraction form
    3,945.58/5,444.97 = 2,177.22/x
  3. Step 3: Cross multiply
    3,945.58x = 5,444.97 × 2,177.22
  4. Step 4: Simplify right side
    3,945.58x = 11,854,897.58
  5. Step 5: Solve for x
    x = 11,854,897.58/3,945.58
  6. Step 6: Final answer
    x = 3,004.60

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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.