Home / 5,815.06-8,727.26-2,118.38

Finding the Fourth Proportional to 5,815.06, 8,727.26 and 2,118.38

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Solution

The fourth proportional to 5,815.06, 8,727.26 and 2,118.38 is: 3,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.06 : 8,727.26 = 2,118.38 : x
  2. Step 2: Convert to fraction form
    5,815.06/8,727.26 = 2,118.38/x
  3. Step 3: Cross multiply
    5,815.06x = 8,727.26 × 2,118.38
  4. Step 4: Simplify right side
    5,815.06x = 18,487,653.04
  5. Step 5: Solve for x
    x = 18,487,653.04/5,815.06
  6. Step 6: Final answer
    x = 3,179.27

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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.