Home / 4,551.69-6,821.62-2,209.78

Finding the Fourth Proportional to 4,551.69, 6,821.62 and 2,209.78

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Solution

The fourth proportional to 4,551.69, 6,821.62 and 2,209.78 is: 3,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,551.69 : 6,821.62 = 2,209.78 : x
  2. Step 2: Convert to fraction form
    4,551.69/6,821.62 = 2,209.78/x
  3. Step 3: Cross multiply
    4,551.69x = 6,821.62 × 2,209.78
  4. Step 4: Simplify right side
    4,551.69x = 15,074,282.45
  5. Step 5: Solve for x
    x = 15,074,282.45/4,551.69
  6. Step 6: Final answer
    x = 3,311.80

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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.