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Finding the Fourth Proportional to 3,609.38, 5,406.57 and 1,754.88

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Solution

The fourth proportional to 3,609.38, 5,406.57 and 1,754.88 is: 2,628.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.38 : 5,406.57 = 1,754.88 : x
  2. Step 2: Convert to fraction form
    3,609.38/5,406.57 = 1,754.88/x
  3. Step 3: Cross multiply
    3,609.38x = 5,406.57 × 1,754.88
  4. Step 4: Simplify right side
    3,609.38x = 9,487,881.56
  5. Step 5: Solve for x
    x = 9,487,881.56/3,609.38
  6. Step 6: Final answer
    x = 2,628.68

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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.