Home / 4,912.80-6,779.54-2,759.29

Finding the Fourth Proportional to 4,912.80, 6,779.54 and 2,759.29

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Solution

The fourth proportional to 4,912.80, 6,779.54 and 2,759.29 is: 3,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.80 : 6,779.54 = 2,759.29 : x
  2. Step 2: Convert to fraction form
    4,912.80/6,779.54 = 2,759.29/x
  3. Step 3: Cross multiply
    4,912.80x = 6,779.54 × 2,759.29
  4. Step 4: Simplify right side
    4,912.80x = 18,706,716.93
  5. Step 5: Solve for x
    x = 18,706,716.93/4,912.80
  6. Step 6: Final answer
    x = 3,807.75

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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.