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Finding the Fourth Proportional to 2,029.56, 3,043.24 and 859.20

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Solution

The fourth proportional to 2,029.56, 3,043.24 and 859.20 is: 1,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.56 : 3,043.24 = 859.20 : x
  2. Step 2: Convert to fraction form
    2,029.56/3,043.24 = 859.20/x
  3. Step 3: Cross multiply
    2,029.56x = 3,043.24 × 859.20
  4. Step 4: Simplify right side
    2,029.56x = 2,614,751.81
  5. Step 5: Solve for x
    x = 2,614,751.81/2,029.56
  6. Step 6: Final answer
    x = 1,288.33

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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.