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Finding the Fourth Proportional to 2,579.13, 3,868.36 and 730.41

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Solution

The fourth proportional to 2,579.13, 3,868.36 and 730.41 is: 1,095.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.13 : 3,868.36 = 730.41 : x
  2. Step 2: Convert to fraction form
    2,579.13/3,868.36 = 730.41/x
  3. Step 3: Cross multiply
    2,579.13x = 3,868.36 × 730.41
  4. Step 4: Simplify right side
    2,579.13x = 2,825,487.00
  5. Step 5: Solve for x
    x = 2,825,487.00/2,579.13
  6. Step 6: Final answer
    x = 1,095.52

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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.