Home / 3,181.88-4,390.66-1,765.52

Finding the Fourth Proportional to 3,181.88, 4,390.66 and 1,765.52

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Solution

The fourth proportional to 3,181.88, 4,390.66 and 1,765.52 is: 2,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.88 : 4,390.66 = 1,765.52 : x
  2. Step 2: Convert to fraction form
    3,181.88/4,390.66 = 1,765.52/x
  3. Step 3: Cross multiply
    3,181.88x = 4,390.66 × 1,765.52
  4. Step 4: Simplify right side
    3,181.88x = 7,751,809.53
  5. Step 5: Solve for x
    x = 7,751,809.53/3,181.88
  6. Step 6: Final answer
    x = 2,436.24

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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.