Home / 2,678.12-4,023.33-1,900.04

Finding the Fourth Proportional to 2,678.12, 4,023.33 and 1,900.04

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Solution

The fourth proportional to 2,678.12, 4,023.33 and 1,900.04 is: 2,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.12 : 4,023.33 = 1,900.04 : x
  2. Step 2: Convert to fraction form
    2,678.12/4,023.33 = 1,900.04/x
  3. Step 3: Cross multiply
    2,678.12x = 4,023.33 × 1,900.04
  4. Step 4: Simplify right side
    2,678.12x = 7,644,467.82
  5. Step 5: Solve for x
    x = 7,644,467.82/2,678.12
  6. Step 6: Final answer
    x = 2,854.42

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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.