Home / 5,305.80-7,958.45-2,185.03

Finding the Fourth Proportional to 5,305.80, 7,958.45 and 2,185.03

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Solution

The fourth proportional to 5,305.80, 7,958.45 and 2,185.03 is: 3,277.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.80 : 7,958.45 = 2,185.03 : x
  2. Step 2: Convert to fraction form
    5,305.80/7,958.45 = 2,185.03/x
  3. Step 3: Cross multiply
    5,305.80x = 7,958.45 × 2,185.03
  4. Step 4: Simplify right side
    5,305.80x = 17,389,401.29
  5. Step 5: Solve for x
    x = 17,389,401.29/5,305.80
  6. Step 6: Final answer
    x = 3,277.44

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1.5x scale

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.