Home / 4,789.72-7,185.66-1,869.94

Finding the Fourth Proportional to 4,789.72, 7,185.66 and 1,869.94

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Solution

The fourth proportional to 4,789.72, 7,185.66 and 1,869.94 is: 2,805.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.72 : 7,185.66 = 1,869.94 : x
  2. Step 2: Convert to fraction form
    4,789.72/7,185.66 = 1,869.94/x
  3. Step 3: Cross multiply
    4,789.72x = 7,185.66 × 1,869.94
  4. Step 4: Simplify right side
    4,789.72x = 13,436,753.06
  5. Step 5: Solve for x
    x = 13,436,753.06/4,789.72
  6. Step 6: Final answer
    x = 2,805.33

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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.