Home / 5,418.36-8,123.36-2,493.18

Finding the Fourth Proportional to 5,418.36, 8,123.36 and 2,493.18

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Solution

The fourth proportional to 5,418.36, 8,123.36 and 2,493.18 is: 3,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.36 : 8,123.36 = 2,493.18 : x
  2. Step 2: Convert to fraction form
    5,418.36/8,123.36 = 2,493.18/x
  3. Step 3: Cross multiply
    5,418.36x = 8,123.36 × 2,493.18
  4. Step 4: Simplify right side
    5,418.36x = 20,252,986.22
  5. Step 5: Solve for x
    x = 20,252,986.22/5,418.36
  6. Step 6: Final answer
    x = 3,737.84

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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.