Home / 3,986.42-5,501.49-2,218.01

Finding the Fourth Proportional to 3,986.42, 5,501.49 and 2,218.01

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Solution

The fourth proportional to 3,986.42, 5,501.49 and 2,218.01 is: 3,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.42 : 5,501.49 = 2,218.01 : x
  2. Step 2: Convert to fraction form
    3,986.42/5,501.49 = 2,218.01/x
  3. Step 3: Cross multiply
    3,986.42x = 5,501.49 × 2,218.01
  4. Step 4: Simplify right side
    3,986.42x = 12,202,359.83
  5. Step 5: Solve for x
    x = 12,202,359.83/3,986.42
  6. Step 6: Final answer
    x = 3,060.98

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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.