Home / 3,428.82-5,142.24-1,237.14

Finding the Fourth Proportional to 3,428.82, 5,142.24 and 1,237.14

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Solution

The fourth proportional to 3,428.82, 5,142.24 and 1,237.14 is: 1,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.82 : 5,142.24 = 1,237.14 : x
  2. Step 2: Convert to fraction form
    3,428.82/5,142.24 = 1,237.14/x
  3. Step 3: Cross multiply
    3,428.82x = 5,142.24 × 1,237.14
  4. Step 4: Simplify right side
    3,428.82x = 6,361,670.79
  5. Step 5: Solve for x
    x = 6,361,670.79/3,428.82
  6. Step 6: Final answer
    x = 1,855.35

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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.