Home / 3,986.41-5,500.63-2,218.01

Finding the Fourth Proportional to 3,986.41, 5,500.63 and 2,218.01

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Solution

The fourth proportional to 3,986.41, 5,500.63 and 2,218.01 is: 3,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.41 : 5,500.63 = 2,218.01 : x
  2. Step 2: Convert to fraction form
    3,986.41/5,500.63 = 2,218.01/x
  3. Step 3: Cross multiply
    3,986.41x = 5,500.63 × 2,218.01
  4. Step 4: Simplify right side
    3,986.41x = 12,200,441.26
  5. Step 5: Solve for x
    x = 12,200,441.26/3,986.41
  6. Step 6: Final answer
    x = 3,060.51

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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.