Home / 3,206-4,809.24-1,818.80

Finding the Fourth Proportional to 3,206, 4,809.24 and 1,818.80

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Solution

The fourth proportional to 3,206, 4,809.24 and 1,818.80 is: 2,728.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206 : 4,809.24 = 1,818.80 : x
  2. Step 2: Convert to fraction form
    3,206/4,809.24 = 1,818.80/x
  3. Step 3: Cross multiply
    3,206x = 4,809.24 × 1,818.80
  4. Step 4: Simplify right side
    3,206x = 8,747,045.71
  5. Step 5: Solve for x
    x = 8,747,045.71/3,206
  6. Step 6: Final answer
    x = 2,728.34

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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.