Home / 3,249-4,485.06-2,131.56

Finding the Fourth Proportional to 3,249, 4,485.06 and 2,131.56

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Solution

The fourth proportional to 3,249, 4,485.06 and 2,131.56 is: 2,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249 : 4,485.06 = 2,131.56 : x
  2. Step 2: Convert to fraction form
    3,249/4,485.06 = 2,131.56/x
  3. Step 3: Cross multiply
    3,249x = 4,485.06 × 2,131.56
  4. Step 4: Simplify right side
    3,249x = 9,560,174.49
  5. Step 5: Solve for x
    x = 9,560,174.49/3,249
  6. Step 6: Final answer
    x = 2,942.50

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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.