Home / 3,899.59-5,379.84-2,835.03

Finding the Fourth Proportional to 3,899.59, 5,379.84 and 2,835.03

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Solution

The fourth proportional to 3,899.59, 5,379.84 and 2,835.03 is: 3,911.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.59 : 5,379.84 = 2,835.03 : x
  2. Step 2: Convert to fraction form
    3,899.59/5,379.84 = 2,835.03/x
  3. Step 3: Cross multiply
    3,899.59x = 5,379.84 × 2,835.03
  4. Step 4: Simplify right side
    3,899.59x = 15,251,990.55
  5. Step 5: Solve for x
    x = 15,251,990.55/3,899.59
  6. Step 6: Final answer
    x = 3,911.17

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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.