Home / 4,912.38-6,779.40-2,788.26

Finding the Fourth Proportional to 4,912.38, 6,779.40 and 2,788.26

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Solution

The fourth proportional to 4,912.38, 6,779.40 and 2,788.26 is: 3,847.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.38 : 6,779.40 = 2,788.26 : x
  2. Step 2: Convert to fraction form
    4,912.38/6,779.40 = 2,788.26/x
  3. Step 3: Cross multiply
    4,912.38x = 6,779.40 × 2,788.26
  4. Step 4: Simplify right side
    4,912.38x = 18,902,693.97
  5. Step 5: Solve for x
    x = 18,902,693.97/4,912.38
  6. Step 6: Final answer
    x = 3,847.97

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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.