Home / 4,212.78-6,306.68-3,122.04

Finding the Fourth Proportional to 4,212.78, 6,306.68 and 3,122.04

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Solution

The fourth proportional to 4,212.78, 6,306.68 and 3,122.04 is: 4,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.78 : 6,306.68 = 3,122.04 : x
  2. Step 2: Convert to fraction form
    4,212.78/6,306.68 = 3,122.04/x
  3. Step 3: Cross multiply
    4,212.78x = 6,306.68 × 3,122.04
  4. Step 4: Simplify right side
    4,212.78x = 19,689,675.69
  5. Step 5: Solve for x
    x = 19,689,675.69/4,212.78
  6. Step 6: Final answer
    x = 4,673.80

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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.