Home / 3,231.23-4,459.92-1,905.36

Finding the Fourth Proportional to 3,231.23, 4,459.92 and 1,905.36

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Solution

The fourth proportional to 3,231.23, 4,459.92 and 1,905.36 is: 2,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.23 : 4,459.92 = 1,905.36 : x
  2. Step 2: Convert to fraction form
    3,231.23/4,459.92 = 1,905.36/x
  3. Step 3: Cross multiply
    3,231.23x = 4,459.92 × 1,905.36
  4. Step 4: Simplify right side
    3,231.23x = 8,497,753.17
  5. Step 5: Solve for x
    x = 8,497,753.17/3,231.23
  6. Step 6: Final answer
    x = 2,629.88

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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.