Home / 3,739.88-5,158.01-3,290.78

Finding the Fourth Proportional to 3,739.88, 5,158.01 and 3,290.78

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Solution

The fourth proportional to 3,739.88, 5,158.01 and 3,290.78 is: 4,538.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.88 : 5,158.01 = 3,290.78 : x
  2. Step 2: Convert to fraction form
    3,739.88/5,158.01 = 3,290.78/x
  3. Step 3: Cross multiply
    3,739.88x = 5,158.01 × 3,290.78
  4. Step 4: Simplify right side
    3,739.88x = 16,973,859.69
  5. Step 5: Solve for x
    x = 16,973,859.69/3,739.88
  6. Step 6: Final answer
    x = 4,538.61

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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.