Home / 3,946.98-5,911.25-3,119.70

Finding the Fourth Proportional to 3,946.98, 5,911.25 and 3,119.70

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Solution

The fourth proportional to 3,946.98, 5,911.25 and 3,119.70 is: 4,672.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.98 : 5,911.25 = 3,119.70 : x
  2. Step 2: Convert to fraction form
    3,946.98/5,911.25 = 3,119.70/x
  3. Step 3: Cross multiply
    3,946.98x = 5,911.25 × 3,119.70
  4. Step 4: Simplify right side
    3,946.98x = 18,441,311.03
  5. Step 5: Solve for x
    x = 18,441,311.03/3,946.98
  6. Step 6: Final answer
    x = 4,672.26

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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.