Home / 4,912.68-6,779.66-2,788.30

Finding the Fourth Proportional to 4,912.68, 6,779.66 and 2,788.30

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Solution

The fourth proportional to 4,912.68, 6,779.66 and 2,788.30 is: 3,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912.68 : 6,779.66 = 2,788.30 : x
  2. Step 2: Convert to fraction form
    4,912.68/6,779.66 = 2,788.30/x
  3. Step 3: Cross multiply
    4,912.68x = 6,779.66 × 2,788.30
  4. Step 4: Simplify right side
    4,912.68x = 18,903,725.98
  5. Step 5: Solve for x
    x = 18,903,725.98/4,912.68
  6. Step 6: Final answer
    x = 3,847.95

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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.