Home / 2,779.24-3,834.94-2,107.42

Finding the Fourth Proportional to 2,779.24, 3,834.94 and 2,107.42

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Solution

The fourth proportional to 2,779.24, 3,834.94 and 2,107.42 is: 2,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.24 : 3,834.94 = 2,107.42 : x
  2. Step 2: Convert to fraction form
    2,779.24/3,834.94 = 2,107.42/x
  3. Step 3: Cross multiply
    2,779.24x = 3,834.94 × 2,107.42
  4. Step 4: Simplify right side
    2,779.24x = 8,081,829.25
  5. Step 5: Solve for x
    x = 8,081,829.25/2,779.24
  6. Step 6: Final answer
    x = 2,907.93

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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.