Home / 2,176.75-3,004.32-1,245.25

Finding the Fourth Proportional to 2,176.75, 3,004.32 and 1,245.25

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Solution

The fourth proportional to 2,176.75, 3,004.32 and 1,245.25 is: 1,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.75 : 3,004.32 = 1,245.25 : x
  2. Step 2: Convert to fraction form
    2,176.75/3,004.32 = 1,245.25/x
  3. Step 3: Cross multiply
    2,176.75x = 3,004.32 × 1,245.25
  4. Step 4: Simplify right side
    2,176.75x = 3,741,129.48
  5. Step 5: Solve for x
    x = 3,741,129.48/2,176.75
  6. Step 6: Final answer
    x = 1,718.68

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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.