Home / 3,992.10-5,986.86-1,323.19

Finding the Fourth Proportional to 3,992.10, 5,986.86 and 1,323.19

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Solution

The fourth proportional to 3,992.10, 5,986.86 and 1,323.19 is: 1,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.10 : 5,986.86 = 1,323.19 : x
  2. Step 2: Convert to fraction form
    3,992.10/5,986.86 = 1,323.19/x
  3. Step 3: Cross multiply
    3,992.10x = 5,986.86 × 1,323.19
  4. Step 4: Simplify right side
    3,992.10x = 7,921,753.28
  5. Step 5: Solve for x
    x = 7,921,753.28/3,992.10
  6. Step 6: Final answer
    x = 1,984.36

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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.