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Finding the Fourth Proportional to 3,859.04, 5,788.83 and 1,910.72

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Solution

The fourth proportional to 3,859.04, 5,788.83 and 1,910.72 is: 2,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.04 : 5,788.83 = 1,910.72 : x
  2. Step 2: Convert to fraction form
    3,859.04/5,788.83 = 1,910.72/x
  3. Step 3: Cross multiply
    3,859.04x = 5,788.83 × 1,910.72
  4. Step 4: Simplify right side
    3,859.04x = 11,060,833.26
  5. Step 5: Solve for x
    x = 11,060,833.26/3,859.04
  6. Step 6: Final answer
    x = 2,866.21

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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.