Home / 3,869.34-5,805.84-1,788.06

Finding the Fourth Proportional to 3,869.34, 5,805.84 and 1,788.06

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Solution

The fourth proportional to 3,869.34, 5,805.84 and 1,788.06 is: 2,682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.34 : 5,805.84 = 1,788.06 : x
  2. Step 2: Convert to fraction form
    3,869.34/5,805.84 = 1,788.06/x
  3. Step 3: Cross multiply
    3,869.34x = 5,805.84 × 1,788.06
  4. Step 4: Simplify right side
    3,869.34x = 10,381,190.27
  5. Step 5: Solve for x
    x = 10,381,190.27/3,869.34
  6. Step 6: Final answer
    x = 2,682.94

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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.