Home / 3,676.40-5,514.60-3,129.65

Finding the Fourth Proportional to 3,676.40, 5,514.60 and 3,129.65

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Solution

The fourth proportional to 3,676.40, 5,514.60 and 3,129.65 is: 4,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.40 : 5,514.60 = 3,129.65 : x
  2. Step 2: Convert to fraction form
    3,676.40/5,514.60 = 3,129.65/x
  3. Step 3: Cross multiply
    3,676.40x = 5,514.60 × 3,129.65
  4. Step 4: Simplify right side
    3,676.40x = 17,258,767.89
  5. Step 5: Solve for x
    x = 17,258,767.89/3,676.40
  6. Step 6: Final answer
    x = 4,694.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.