Home / 3,306.90-4,563.39-1,979.81

Finding the Fourth Proportional to 3,306.90, 4,563.39 and 1,979.81

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Solution

The fourth proportional to 3,306.90, 4,563.39 and 1,979.81 is: 2,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.90 : 4,563.39 = 1,979.81 : x
  2. Step 2: Convert to fraction form
    3,306.90/4,563.39 = 1,979.81/x
  3. Step 3: Cross multiply
    3,306.90x = 4,563.39 × 1,979.81
  4. Step 4: Simplify right side
    3,306.90x = 9,034,645.16
  5. Step 5: Solve for x
    x = 9,034,645.16/3,306.90
  6. Step 6: Final answer
    x = 2,732.06

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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.