Home / 5,685.82-8,529.88-1,789.32

Finding the Fourth Proportional to 5,685.82, 8,529.88 and 1,789.32

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Solution

The fourth proportional to 5,685.82, 8,529.88 and 1,789.32 is: 2,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.82 : 8,529.88 = 1,789.32 : x
  2. Step 2: Convert to fraction form
    5,685.82/8,529.88 = 1,789.32/x
  3. Step 3: Cross multiply
    5,685.82x = 8,529.88 × 1,789.32
  4. Step 4: Simplify right side
    5,685.82x = 15,262,684.88
  5. Step 5: Solve for x
    x = 15,262,684.88/5,685.82
  6. Step 6: Final answer
    x = 2,684.34

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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.