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Finding the Fourth Proportional to 7,305, 10,082.52 and 4,512.12

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Solution

The fourth proportional to 7,305, 10,082.52 and 4,512.12 is: 6,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305 : 10,082.52 = 4,512.12 : x
  2. Step 2: Convert to fraction form
    7,305/10,082.52 = 4,512.12/x
  3. Step 3: Cross multiply
    7,305x = 10,082.52 × 4,512.12
  4. Step 4: Simplify right side
    7,305x = 45,493,540.14
  5. Step 5: Solve for x
    x = 45,493,540.14/7,305
  6. Step 6: Final answer
    x = 6,227.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.