Home / 3,739.24-5,157.30-2,857.96

Finding the Fourth Proportional to 3,739.24, 5,157.30 and 2,857.96

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Solution

The fourth proportional to 3,739.24, 5,157.30 and 2,857.96 is: 3,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.24 : 5,157.30 = 2,857.96 : x
  2. Step 2: Convert to fraction form
    3,739.24/5,157.30 = 2,857.96/x
  3. Step 3: Cross multiply
    3,739.24x = 5,157.30 × 2,857.96
  4. Step 4: Simplify right side
    3,739.24x = 14,739,357.11
  5. Step 5: Solve for x
    x = 14,739,357.11/3,739.24
  6. Step 6: Final answer
    x = 3,941.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.