Home / 4,285.79-6,424.97-1,912.09

Finding the Fourth Proportional to 4,285.79, 6,424.97 and 1,912.09

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Solution

The fourth proportional to 4,285.79, 6,424.97 and 1,912.09 is: 2,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.79 : 6,424.97 = 1,912.09 : x
  2. Step 2: Convert to fraction form
    4,285.79/6,424.97 = 1,912.09/x
  3. Step 3: Cross multiply
    4,285.79x = 6,424.97 × 1,912.09
  4. Step 4: Simplify right side
    4,285.79x = 12,285,106.02
  5. Step 5: Solve for x
    x = 12,285,106.02/4,285.79
  6. Step 6: Final answer
    x = 2,866.47

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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.