Home / 3,243.93-4,475.79-2,179.80

Finding the Fourth Proportional to 3,243.93, 4,475.79 and 2,179.80

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Solution

The fourth proportional to 3,243.93, 4,475.79 and 2,179.80 is: 3,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.93 : 4,475.79 = 2,179.80 : x
  2. Step 2: Convert to fraction form
    3,243.93/4,475.79 = 2,179.80/x
  3. Step 3: Cross multiply
    3,243.93x = 4,475.79 × 2,179.80
  4. Step 4: Simplify right side
    3,243.93x = 9,756,304.66
  5. Step 5: Solve for x
    x = 9,756,304.66/3,243.93
  6. Step 6: Final answer
    x = 3,007.56

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1.5x scale

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.