Home / 3,227.96-4,460.64-2,638.28

Finding the Fourth Proportional to 3,227.96, 4,460.64 and 2,638.28

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Solution

The fourth proportional to 3,227.96, 4,460.64 and 2,638.28 is: 3,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,227.96 : 4,460.64 = 2,638.28 : x
  2. Step 2: Convert to fraction form
    3,227.96/4,460.64 = 2,638.28/x
  3. Step 3: Cross multiply
    3,227.96x = 4,460.64 × 2,638.28
  4. Step 4: Simplify right side
    3,227.96x = 11,768,417.30
  5. Step 5: Solve for x
    x = 11,768,417.30/3,227.96
  6. Step 6: Final answer
    x = 3,645.78

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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.