Home / 3,989.34-5,986.44-2,349.09

Finding the Fourth Proportional to 3,989.34, 5,986.44 and 2,349.09

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Solution

The fourth proportional to 3,989.34, 5,986.44 and 2,349.09 is: 3,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.34 : 5,986.44 = 2,349.09 : x
  2. Step 2: Convert to fraction form
    3,989.34/5,986.44 = 2,349.09/x
  3. Step 3: Cross multiply
    3,989.34x = 5,986.44 × 2,349.09
  4. Step 4: Simplify right side
    3,989.34x = 14,062,686.34
  5. Step 5: Solve for x
    x = 14,062,686.34/3,989.34
  6. Step 6: Final answer
    x = 3,525.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.