Home / 3,892.80-5,835.15-2,135.10

Finding the Fourth Proportional to 3,892.80, 5,835.15 and 2,135.10

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Solution

The fourth proportional to 3,892.80, 5,835.15 and 2,135.10 is: 3,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,892.80 : 5,835.15 = 2,135.10 : x
  2. Step 2: Convert to fraction form
    3,892.80/5,835.15 = 2,135.10/x
  3. Step 3: Cross multiply
    3,892.80x = 5,835.15 × 2,135.10
  4. Step 4: Simplify right side
    3,892.80x = 12,458,628.77
  5. Step 5: Solve for x
    x = 12,458,628.77/3,892.80
  6. Step 6: Final answer
    x = 3,200.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.