Home / 3,116.39-4,299.55-1,982.57

Finding the Fourth Proportional to 3,116.39, 4,299.55 and 1,982.57

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Solution

The fourth proportional to 3,116.39, 4,299.55 and 1,982.57 is: 2,735.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.39 : 4,299.55 = 1,982.57 : x
  2. Step 2: Convert to fraction form
    3,116.39/4,299.55 = 1,982.57/x
  3. Step 3: Cross multiply
    3,116.39x = 4,299.55 × 1,982.57
  4. Step 4: Simplify right side
    3,116.39x = 8,524,164.64
  5. Step 5: Solve for x
    x = 8,524,164.64/3,116.39
  6. Step 6: Final answer
    x = 2,735.27

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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.