Home / 6,982.64-9,636.04-3,998.56

Finding the Fourth Proportional to 6,982.64, 9,636.04 and 3,998.56

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Solution

The fourth proportional to 6,982.64, 9,636.04 and 3,998.56 is: 5,518.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,982.64 : 9,636.04 = 3,998.56 : x
  2. Step 2: Convert to fraction form
    6,982.64/9,636.04 = 3,998.56/x
  3. Step 3: Cross multiply
    6,982.64x = 9,636.04 × 3,998.56
  4. Step 4: Simplify right side
    6,982.64x = 38,530,284.10
  5. Step 5: Solve for x
    x = 38,530,284.10/6,982.64
  6. Step 6: Final answer
    x = 5,518.01

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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.