Home / 5,179.30-7,764.28-1,890.09

Finding the Fourth Proportional to 5,179.30, 7,764.28 and 1,890.09

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Solution

The fourth proportional to 5,179.30, 7,764.28 and 1,890.09 is: 2,833.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.30 : 7,764.28 = 1,890.09 : x
  2. Step 2: Convert to fraction form
    5,179.30/7,764.28 = 1,890.09/x
  3. Step 3: Cross multiply
    5,179.30x = 7,764.28 × 1,890.09
  4. Step 4: Simplify right side
    5,179.30x = 14,675,187.99
  5. Step 5: Solve for x
    x = 14,675,187.99/5,179.30
  6. Step 6: Final answer
    x = 2,833.43

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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.