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Finding the Fourth Proportional to 3,489.56, 5,236.14 and 1,930.82

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Solution

The fourth proportional to 3,489.56, 5,236.14 and 1,930.82 is: 2,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.56 : 5,236.14 = 1,930.82 : x
  2. Step 2: Convert to fraction form
    3,489.56/5,236.14 = 1,930.82/x
  3. Step 3: Cross multiply
    3,489.56x = 5,236.14 × 1,930.82
  4. Step 4: Simplify right side
    3,489.56x = 10,110,043.83
  5. Step 5: Solve for x
    x = 10,110,043.83/3,489.56
  6. Step 6: Final answer
    x = 2,897.23

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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.