Home / 7,905.20-11,850.42-3,954.02

Finding the Fourth Proportional to 7,905.20, 11,850.42 and 3,954.02

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Solution

The fourth proportional to 7,905.20, 11,850.42 and 3,954.02 is: 5,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.20 : 11,850.42 = 3,954.02 : x
  2. Step 2: Convert to fraction form
    7,905.20/11,850.42 = 3,954.02/x
  3. Step 3: Cross multiply
    7,905.20x = 11,850.42 × 3,954.02
  4. Step 4: Simplify right side
    7,905.20x = 46,856,797.69
  5. Step 5: Solve for x
    x = 46,856,797.69/7,905.20
  6. Step 6: Final answer
    x = 5,927.34

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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.