Home / 3,965.40-5,951.97-3,311.46

Finding the Fourth Proportional to 3,965.40, 5,951.97 and 3,311.46

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Solution

The fourth proportional to 3,965.40, 5,951.97 and 3,311.46 is: 4,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.40 : 5,951.97 = 3,311.46 : x
  2. Step 2: Convert to fraction form
    3,965.40/5,951.97 = 3,311.46/x
  3. Step 3: Cross multiply
    3,965.40x = 5,951.97 × 3,311.46
  4. Step 4: Simplify right side
    3,965.40x = 19,709,710.58
  5. Step 5: Solve for x
    x = 19,709,710.58/3,965.40
  6. Step 6: Final answer
    x = 4,970.42

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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.