Home / 3,991.01-5,986.92-1,069.61

Finding the Fourth Proportional to 3,991.01, 5,986.92 and 1,069.61

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Solution

The fourth proportional to 3,991.01, 5,986.92 and 1,069.61 is: 1,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.01 : 5,986.92 = 1,069.61 : x
  2. Step 2: Convert to fraction form
    3,991.01/5,986.92 = 1,069.61/x
  3. Step 3: Cross multiply
    3,991.01x = 5,986.92 × 1,069.61
  4. Step 4: Simplify right side
    3,991.01x = 6,403,669.50
  5. Step 5: Solve for x
    x = 6,403,669.50/3,991.01
  6. Step 6: Final answer
    x = 1,604.52

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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.