Home / 3,989.30-5,502.82-2,495.99

Finding the Fourth Proportional to 3,989.30, 5,502.82 and 2,495.99

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Solution

The fourth proportional to 3,989.30, 5,502.82 and 2,495.99 is: 3,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.30 : 5,502.82 = 2,495.99 : x
  2. Step 2: Convert to fraction form
    3,989.30/5,502.82 = 2,495.99/x
  3. Step 3: Cross multiply
    3,989.30x = 5,502.82 × 2,495.99
  4. Step 4: Simplify right side
    3,989.30x = 13,734,991.21
  5. Step 5: Solve for x
    x = 13,734,991.21/3,989.30
  6. Step 6: Final answer
    x = 3,442.96

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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.