Home / 3,945.54-5,444.88-2,177.28

Finding the Fourth Proportional to 3,945.54, 5,444.88 and 2,177.28

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Solution

The fourth proportional to 3,945.54, 5,444.88 and 2,177.28 is: 3,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.54 : 5,444.88 = 2,177.28 : x
  2. Step 2: Convert to fraction form
    3,945.54/5,444.88 = 2,177.28/x
  3. Step 3: Cross multiply
    3,945.54x = 5,444.88 × 2,177.28
  4. Step 4: Simplify right side
    3,945.54x = 11,855,028.33
  5. Step 5: Solve for x
    x = 11,855,028.33/3,945.54
  6. Step 6: Final answer
    x = 3,004.67

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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.