Home / 3,860.60-5,789.18-1,395.43

Finding the Fourth Proportional to 3,860.60, 5,789.18 and 1,395.43

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Solution

The fourth proportional to 3,860.60, 5,789.18 and 1,395.43 is: 2,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.60 : 5,789.18 = 1,395.43 : x
  2. Step 2: Convert to fraction form
    3,860.60/5,789.18 = 1,395.43/x
  3. Step 3: Cross multiply
    3,860.60x = 5,789.18 × 1,395.43
  4. Step 4: Simplify right side
    3,860.60x = 8,078,409.18
  5. Step 5: Solve for x
    x = 8,078,409.18/3,860.60
  6. Step 6: Final answer
    x = 2,092.53

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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.