Home / 3,135.89-4,326.20-1,876.54

Finding the Fourth Proportional to 3,135.89, 4,326.20 and 1,876.54

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Solution

The fourth proportional to 3,135.89, 4,326.20 and 1,876.54 is: 2,588.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.89 : 4,326.20 = 1,876.54 : x
  2. Step 2: Convert to fraction form
    3,135.89/4,326.20 = 1,876.54/x
  3. Step 3: Cross multiply
    3,135.89x = 4,326.20 × 1,876.54
  4. Step 4: Simplify right side
    3,135.89x = 8,118,287.35
  5. Step 5: Solve for x
    x = 8,118,287.35/3,135.89
  6. Step 6: Final answer
    x = 2,588.83

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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.