Home / 5,785.68-8,676.42-2,086.91

Finding the Fourth Proportional to 5,785.68, 8,676.42 and 2,086.91

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Solution

The fourth proportional to 5,785.68, 8,676.42 and 2,086.91 is: 3,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.68 : 8,676.42 = 2,086.91 : x
  2. Step 2: Convert to fraction form
    5,785.68/8,676.42 = 2,086.91/x
  3. Step 3: Cross multiply
    5,785.68x = 8,676.42 × 2,086.91
  4. Step 4: Simplify right side
    5,785.68x = 18,106,907.66
  5. Step 5: Solve for x
    x = 18,106,907.66/5,785.68
  6. Step 6: Final answer
    x = 3,129.61

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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.