Home / 3,957.88-5,462.25-2,190.07

Finding the Fourth Proportional to 3,957.88, 5,462.25 and 2,190.07

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Solution

The fourth proportional to 3,957.88, 5,462.25 and 2,190.07 is: 3,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.88 : 5,462.25 = 2,190.07 : x
  2. Step 2: Convert to fraction form
    3,957.88/5,462.25 = 2,190.07/x
  3. Step 3: Cross multiply
    3,957.88x = 5,462.25 × 2,190.07
  4. Step 4: Simplify right side
    3,957.88x = 11,962,709.86
  5. Step 5: Solve for x
    x = 11,962,709.86/3,957.88
  6. Step 6: Final answer
    x = 3,022.50

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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.