Home / 4,086.39-5,639.27-2,317.99

Finding the Fourth Proportional to 4,086.39, 5,639.27 and 2,317.99

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Solution

The fourth proportional to 4,086.39, 5,639.27 and 2,317.99 is: 3,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.39 : 5,639.27 = 2,317.99 : x
  2. Step 2: Convert to fraction form
    4,086.39/5,639.27 = 2,317.99/x
  3. Step 3: Cross multiply
    4,086.39x = 5,639.27 × 2,317.99
  4. Step 4: Simplify right side
    4,086.39x = 13,071,785.25
  5. Step 5: Solve for x
    x = 13,071,785.25/4,086.39
  6. Step 6: Final answer
    x = 3,198.86

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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.