Home / 3,815.81-5,721.50-1,182.61

Finding the Fourth Proportional to 3,815.81, 5,721.50 and 1,182.61

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Solution

The fourth proportional to 3,815.81, 5,721.50 and 1,182.61 is: 1,773.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.81 : 5,721.50 = 1,182.61 : x
  2. Step 2: Convert to fraction form
    3,815.81/5,721.50 = 1,182.61/x
  3. Step 3: Cross multiply
    3,815.81x = 5,721.50 × 1,182.61
  4. Step 4: Simplify right side
    3,815.81x = 6,766,268.59
  5. Step 5: Solve for x
    x = 6,766,268.59/3,815.81
  6. Step 6: Final answer
    x = 1,773.22

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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.