Home / 5,083.68-7,623.79-1,705.78

Finding the Fourth Proportional to 5,083.68, 7,623.79 and 1,705.78

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Solution

The fourth proportional to 5,083.68, 7,623.79 and 1,705.78 is: 2,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,083.68 : 7,623.79 = 1,705.78 : x
  2. Step 2: Convert to fraction form
    5,083.68/7,623.79 = 1,705.78/x
  3. Step 3: Cross multiply
    5,083.68x = 7,623.79 × 1,705.78
  4. Step 4: Simplify right side
    5,083.68x = 13,004,508.51
  5. Step 5: Solve for x
    x = 13,004,508.51/5,083.68
  6. Step 6: Final answer
    x = 2,558.09

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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.