Home / 3,985.20-5,975.94-2,135.82

Finding the Fourth Proportional to 3,985.20, 5,975.94 and 2,135.82

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Solution

The fourth proportional to 3,985.20, 5,975.94 and 2,135.82 is: 3,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.20 : 5,975.94 = 2,135.82 : x
  2. Step 2: Convert to fraction form
    3,985.20/5,975.94 = 2,135.82/x
  3. Step 3: Cross multiply
    3,985.20x = 5,975.94 × 2,135.82
  4. Step 4: Simplify right side
    3,985.20x = 12,763,532.17
  5. Step 5: Solve for x
    x = 12,763,532.17/3,985.20
  6. Step 6: Final answer
    x = 3,202.73

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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.