Home / 3,781-5,669.05-1,805.55

Finding the Fourth Proportional to 3,781, 5,669.05 and 1,805.55

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Solution

The fourth proportional to 3,781, 5,669.05 and 1,805.55 is: 2,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781 : 5,669.05 = 1,805.55 : x
  2. Step 2: Convert to fraction form
    3,781/5,669.05 = 1,805.55/x
  3. Step 3: Cross multiply
    3,781x = 5,669.05 × 1,805.55
  4. Step 4: Simplify right side
    3,781x = 10,235,753.23
  5. Step 5: Solve for x
    x = 10,235,753.23/3,781
  6. Step 6: Final answer
    x = 2,707.16

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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.