Home / 3,223.61-4,839.87-1,664.90

Finding the Fourth Proportional to 3,223.61, 4,839.87 and 1,664.90

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Solution

The fourth proportional to 3,223.61, 4,839.87 and 1,664.90 is: 2,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.61 : 4,839.87 = 1,664.90 : x
  2. Step 2: Convert to fraction form
    3,223.61/4,839.87 = 1,664.90/x
  3. Step 3: Cross multiply
    3,223.61x = 4,839.87 × 1,664.90
  4. Step 4: Simplify right side
    3,223.61x = 8,057,899.56
  5. Step 5: Solve for x
    x = 8,057,899.56/3,223.61
  6. Step 6: Final answer
    x = 2,499.65

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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.