Home / 3,945.07-5,444.16-2,176.69

Finding the Fourth Proportional to 3,945.07, 5,444.16 and 2,176.69

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Solution

The fourth proportional to 3,945.07, 5,444.16 and 2,176.69 is: 3,003.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.07 : 5,444.16 = 2,176.69 : x
  2. Step 2: Convert to fraction form
    3,945.07/5,444.16 = 2,176.69/x
  3. Step 3: Cross multiply
    3,945.07x = 5,444.16 × 2,176.69
  4. Step 4: Simplify right side
    3,945.07x = 11,850,249.31
  5. Step 5: Solve for x
    x = 11,850,249.31/3,945.07
  6. Step 6: Final answer
    x = 3,003.81

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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.