Home / 3,456.62-5,185.70-1,265.30

Finding the Fourth Proportional to 3,456.62, 5,185.70 and 1,265.30

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Solution

The fourth proportional to 3,456.62, 5,185.70 and 1,265.30 is: 1,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.62 : 5,185.70 = 1,265.30 : x
  2. Step 2: Convert to fraction form
    3,456.62/5,185.70 = 1,265.30/x
  3. Step 3: Cross multiply
    3,456.62x = 5,185.70 × 1,265.30
  4. Step 4: Simplify right side
    3,456.62x = 6,561,466.21
  5. Step 5: Solve for x
    x = 6,561,466.21/3,456.62
  6. Step 6: Final answer
    x = 1,898.23

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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.