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Finding the Fourth Proportional to 3,993.84, 5,986.08 and 2,674.80

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Solution

The fourth proportional to 3,993.84, 5,986.08 and 2,674.80 is: 4,009.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.84 : 5,986.08 = 2,674.80 : x
  2. Step 2: Convert to fraction form
    3,993.84/5,986.08 = 2,674.80/x
  3. Step 3: Cross multiply
    3,993.84x = 5,986.08 × 2,674.80
  4. Step 4: Simplify right side
    3,993.84x = 16,011,566.78
  5. Step 5: Solve for x
    x = 16,011,566.78/3,993.84
  6. Step 6: Final answer
    x = 4,009.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.