Home / 3,226.34-4,839.78-1,146.80

Finding the Fourth Proportional to 3,226.34, 4,839.78 and 1,146.80

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Solution

The fourth proportional to 3,226.34, 4,839.78 and 1,146.80 is: 1,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.34 : 4,839.78 = 1,146.80 : x
  2. Step 2: Convert to fraction form
    3,226.34/4,839.78 = 1,146.80/x
  3. Step 3: Cross multiply
    3,226.34x = 4,839.78 × 1,146.80
  4. Step 4: Simplify right side
    3,226.34x = 5,550,259.70
  5. Step 5: Solve for x
    x = 5,550,259.70/3,226.34
  6. Step 6: Final answer
    x = 1,720.30

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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.