Home / 3,215.52-4,427.28-2,836.96

Finding the Fourth Proportional to 3,215.52, 4,427.28 and 2,836.96

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Solution

The fourth proportional to 3,215.52, 4,427.28 and 2,836.96 is: 3,906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.52 : 4,427.28 = 2,836.96 : x
  2. Step 2: Convert to fraction form
    3,215.52/4,427.28 = 2,836.96/x
  3. Step 3: Cross multiply
    3,215.52x = 4,427.28 × 2,836.96
  4. Step 4: Simplify right side
    3,215.52x = 12,560,016.27
  5. Step 5: Solve for x
    x = 12,560,016.27/3,215.52
  6. Step 6: Final answer
    x = 3,906.06

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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.