Home / 6,849.20-10,273.80-1,919

Finding the Fourth Proportional to 6,849.20, 10,273.80 and 1,919

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Solution

The fourth proportional to 6,849.20, 10,273.80 and 1,919 is: 2,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,849.20 : 10,273.80 = 1,919 : x
  2. Step 2: Convert to fraction form
    6,849.20/10,273.80 = 1,919/x
  3. Step 3: Cross multiply
    6,849.20x = 10,273.80 × 1,919
  4. Step 4: Simplify right side
    6,849.20x = 19,715,422.20
  5. Step 5: Solve for x
    x = 19,715,422.20/6,849.20
  6. Step 6: Final answer
    x = 2,878.50

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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.