Home / 3,376.80-5,067.28-1,916.96

Finding the Fourth Proportional to 3,376.80, 5,067.28 and 1,916.96

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Solution

The fourth proportional to 3,376.80, 5,067.28 and 1,916.96 is: 2,876.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.80 : 5,067.28 = 1,916.96 : x
  2. Step 2: Convert to fraction form
    3,376.80/5,067.28 = 1,916.96/x
  3. Step 3: Cross multiply
    3,376.80x = 5,067.28 × 1,916.96
  4. Step 4: Simplify right side
    3,376.80x = 9,713,773.07
  5. Step 5: Solve for x
    x = 9,713,773.07/3,376.80
  6. Step 6: Final answer
    x = 2,876.62

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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.