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Finding the Fourth Proportional to 3,798.56, 5,697.67 and 2,689.54

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Solution

The fourth proportional to 3,798.56, 5,697.67 and 2,689.54 is: 4,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.56 : 5,697.67 = 2,689.54 : x
  2. Step 2: Convert to fraction form
    3,798.56/5,697.67 = 2,689.54/x
  3. Step 3: Cross multiply
    3,798.56x = 5,697.67 × 2,689.54
  4. Step 4: Simplify right side
    3,798.56x = 15,324,129.95
  5. Step 5: Solve for x
    x = 15,324,129.95/3,798.56
  6. Step 6: Final answer
    x = 4,034.20

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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.