Home / 3,942.23-5,905.27-3,157.99

Finding the Fourth Proportional to 3,942.23, 5,905.27 and 3,157.99

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Solution

The fourth proportional to 3,942.23, 5,905.27 and 3,157.99 is: 4,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.23 : 5,905.27 = 3,157.99 : x
  2. Step 2: Convert to fraction form
    3,942.23/5,905.27 = 3,157.99/x
  3. Step 3: Cross multiply
    3,942.23x = 5,905.27 × 3,157.99
  4. Step 4: Simplify right side
    3,942.23x = 18,648,760.95
  5. Step 5: Solve for x
    x = 18,648,760.95/3,942.23
  6. Step 6: Final answer
    x = 4,730.51

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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.