Home / 3,945.57-5,444.85-2,177.19

Finding the Fourth Proportional to 3,945.57, 5,444.85 and 2,177.19

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Solution

The fourth proportional to 3,945.57, 5,444.85 and 2,177.19 is: 3,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.57 : 5,444.85 = 2,177.19 : x
  2. Step 2: Convert to fraction form
    3,945.57/5,444.85 = 2,177.19/x
  3. Step 3: Cross multiply
    3,945.57x = 5,444.85 × 2,177.19
  4. Step 4: Simplify right side
    3,945.57x = 11,854,472.97
  5. Step 5: Solve for x
    x = 11,854,472.97/3,945.57
  6. Step 6: Final answer
    x = 3,004.50

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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.