Home / 8,082.92-12,120.54-2,609.64

Finding the Fourth Proportional to 8,082.92, 12,120.54 and 2,609.64

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Solution

The fourth proportional to 8,082.92, 12,120.54 and 2,609.64 is: 3,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.92 : 12,120.54 = 2,609.64 : x
  2. Step 2: Convert to fraction form
    8,082.92/12,120.54 = 2,609.64/x
  3. Step 3: Cross multiply
    8,082.92x = 12,120.54 × 2,609.64
  4. Step 4: Simplify right side
    8,082.92x = 31,630,246.01
  5. Step 5: Solve for x
    x = 31,630,246.01/8,082.92
  6. Step 6: Final answer
    x = 3,913.22

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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.