Home / 3,779.70-5,668.90-2,680.72

Finding the Fourth Proportional to 3,779.70, 5,668.90 and 2,680.72

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Solution

The fourth proportional to 3,779.70, 5,668.90 and 2,680.72 is: 4,020.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.70 : 5,668.90 = 2,680.72 : x
  2. Step 2: Convert to fraction form
    3,779.70/5,668.90 = 2,680.72/x
  3. Step 3: Cross multiply
    3,779.70x = 5,668.90 × 2,680.72
  4. Step 4: Simplify right side
    3,779.70x = 15,196,733.61
  5. Step 5: Solve for x
    x = 15,196,733.61/3,779.70
  6. Step 6: Final answer
    x = 4,020.62

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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.