Home / 5,636.56-8,458.64-2,129.64

Finding the Fourth Proportional to 5,636.56, 8,458.64 and 2,129.64

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Solution

The fourth proportional to 5,636.56, 8,458.64 and 2,129.64 is: 3,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.56 : 8,458.64 = 2,129.64 : x
  2. Step 2: Convert to fraction form
    5,636.56/8,458.64 = 2,129.64/x
  3. Step 3: Cross multiply
    5,636.56x = 8,458.64 × 2,129.64
  4. Step 4: Simplify right side
    5,636.56x = 18,013,858.09
  5. Step 5: Solve for x
    x = 18,013,858.09/5,636.56
  6. Step 6: Final answer
    x = 3,195.90

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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.