Home / 3,072.09-4,239.43-1,674.84

Finding the Fourth Proportional to 3,072.09, 4,239.43 and 1,674.84

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Solution

The fourth proportional to 3,072.09, 4,239.43 and 1,674.84 is: 2,311.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.09 : 4,239.43 = 1,674.84 : x
  2. Step 2: Convert to fraction form
    3,072.09/4,239.43 = 1,674.84/x
  3. Step 3: Cross multiply
    3,072.09x = 4,239.43 × 1,674.84
  4. Step 4: Simplify right side
    3,072.09x = 7,100,366.94
  5. Step 5: Solve for x
    x = 7,100,366.94/3,072.09
  6. Step 6: Final answer
    x = 2,311.25

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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.