Home / 3,855.04-5,319.95-2,086.64

Finding the Fourth Proportional to 3,855.04, 5,319.95 and 2,086.64

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Solution

The fourth proportional to 3,855.04, 5,319.95 and 2,086.64 is: 2,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.04 : 5,319.95 = 2,086.64 : x
  2. Step 2: Convert to fraction form
    3,855.04/5,319.95 = 2,086.64/x
  3. Step 3: Cross multiply
    3,855.04x = 5,319.95 × 2,086.64
  4. Step 4: Simplify right side
    3,855.04x = 11,100,799.08
  5. Step 5: Solve for x
    x = 11,100,799.08/3,855.04
  6. Step 6: Final answer
    x = 2,879.56

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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.