Home / 3,426.89-4,728.11-2,309.09

Finding the Fourth Proportional to 3,426.89, 4,728.11 and 2,309.09

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Solution

The fourth proportional to 3,426.89, 4,728.11 and 2,309.09 is: 3,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.89 : 4,728.11 = 2,309.09 : x
  2. Step 2: Convert to fraction form
    3,426.89/4,728.11 = 2,309.09/x
  3. Step 3: Cross multiply
    3,426.89x = 4,728.11 × 2,309.09
  4. Step 4: Simplify right side
    3,426.89x = 10,917,596.33
  5. Step 5: Solve for x
    x = 10,917,596.33/3,426.89
  6. Step 6: Final answer
    x = 3,185.87

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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.