Home / 3,135.30-4,326.39-2,636.61

Finding the Fourth Proportional to 3,135.30, 4,326.39 and 2,636.61

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Solution

The fourth proportional to 3,135.30, 4,326.39 and 2,636.61 is: 3,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.30 : 4,326.39 = 2,636.61 : x
  2. Step 2: Convert to fraction form
    3,135.30/4,326.39 = 2,636.61/x
  3. Step 3: Cross multiply
    3,135.30x = 4,326.39 × 2,636.61
  4. Step 4: Simplify right side
    3,135.30x = 11,407,003.14
  5. Step 5: Solve for x
    x = 11,407,003.14/3,135.30
  6. Step 6: Final answer
    x = 3,638.25

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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.