Home / 3,188.82-4,400.31-1,772.39

Finding the Fourth Proportional to 3,188.82, 4,400.31 and 1,772.39

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Solution

The fourth proportional to 3,188.82, 4,400.31 and 1,772.39 is: 2,445.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.82 : 4,400.31 = 1,772.39 : x
  2. Step 2: Convert to fraction form
    3,188.82/4,400.31 = 1,772.39/x
  3. Step 3: Cross multiply
    3,188.82x = 4,400.31 × 1,772.39
  4. Step 4: Simplify right side
    3,188.82x = 7,799,083.09
  5. Step 5: Solve for x
    x = 7,799,083.09/3,188.82
  6. Step 6: Final answer
    x = 2,445.76

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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.