Home / 5,285.21-7,933.73-2,819.36

Finding the Fourth Proportional to 5,285.21, 7,933.73 and 2,819.36

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Solution

The fourth proportional to 5,285.21, 7,933.73 and 2,819.36 is: 4,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.21 : 7,933.73 = 2,819.36 : x
  2. Step 2: Convert to fraction form
    5,285.21/7,933.73 = 2,819.36/x
  3. Step 3: Cross multiply
    5,285.21x = 7,933.73 × 2,819.36
  4. Step 4: Simplify right side
    5,285.21x = 22,368,046.75
  5. Step 5: Solve for x
    x = 22,368,046.75/5,285.21
  6. Step 6: Final answer
    x = 4,232.20

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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.