Home / 3,456.54-5,185.62-1,265.76

Finding the Fourth Proportional to 3,456.54, 5,185.62 and 1,265.76

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Solution

The fourth proportional to 3,456.54, 5,185.62 and 1,265.76 is: 1,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.54 : 5,185.62 = 1,265.76 : x
  2. Step 2: Convert to fraction form
    3,456.54/5,185.62 = 1,265.76/x
  3. Step 3: Cross multiply
    3,456.54x = 5,185.62 × 1,265.76
  4. Step 4: Simplify right side
    3,456.54x = 6,563,750.37
  5. Step 5: Solve for x
    x = 6,563,750.37/3,456.54
  6. Step 6: Final answer
    x = 1,898.94

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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.