Home / 3,206.79-4,423.14-2,028.65

Finding the Fourth Proportional to 3,206.79, 4,423.14 and 2,028.65

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Solution

The fourth proportional to 3,206.79, 4,423.14 and 2,028.65 is: 2,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.79 : 4,423.14 = 2,028.65 : x
  2. Step 2: Convert to fraction form
    3,206.79/4,423.14 = 2,028.65/x
  3. Step 3: Cross multiply
    3,206.79x = 4,423.14 × 2,028.65
  4. Step 4: Simplify right side
    3,206.79x = 8,972,980.85
  5. Step 5: Solve for x
    x = 8,972,980.85/3,206.79
  6. Step 6: Final answer
    x = 2,798.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.