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Finding the Fourth Proportional to 2,039.94, 3,059.93 and 579.09

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Solution

The fourth proportional to 2,039.94, 3,059.93 and 579.09 is: 868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.94 : 3,059.93 = 579.09 : x
  2. Step 2: Convert to fraction form
    2,039.94/3,059.93 = 579.09/x
  3. Step 3: Cross multiply
    2,039.94x = 3,059.93 × 579.09
  4. Step 4: Simplify right side
    2,039.94x = 1,771,973.13
  5. Step 5: Solve for x
    x = 1,771,973.13/2,039.94
  6. Step 6: Final answer
    x = 868.64

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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.