Home / 2,176.88-3,004.70-1,245.38

Finding the Fourth Proportional to 2,176.88, 3,004.70 and 1,245.38

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Solution

The fourth proportional to 2,176.88, 3,004.70 and 1,245.38 is: 1,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.88 : 3,004.70 = 1,245.38 : x
  2. Step 2: Convert to fraction form
    2,176.88/3,004.70 = 1,245.38/x
  3. Step 3: Cross multiply
    2,176.88x = 3,004.70 × 1,245.38
  4. Step 4: Simplify right side
    2,176.88x = 3,741,972.04
  5. Step 5: Solve for x
    x = 3,741,972.04/2,176.88
  6. Step 6: Final answer
    x = 1,718.97

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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.