Home / 2,765.73-4,148.45-1,669.80

Finding the Fourth Proportional to 2,765.73, 4,148.45 and 1,669.80

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Solution

The fourth proportional to 2,765.73, 4,148.45 and 1,669.80 is: 2,504.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.73 : 4,148.45 = 1,669.80 : x
  2. Step 2: Convert to fraction form
    2,765.73/4,148.45 = 1,669.80/x
  3. Step 3: Cross multiply
    2,765.73x = 4,148.45 × 1,669.80
  4. Step 4: Simplify right side
    2,765.73x = 6,927,081.81
  5. Step 5: Solve for x
    x = 6,927,081.81/2,765.73
  6. Step 6: Final answer
    x = 2,504.61

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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.