Home / 3,843.26-5,765.70-1,246.40

Finding the Fourth Proportional to 3,843.26, 5,765.70 and 1,246.40

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Solution

The fourth proportional to 3,843.26, 5,765.70 and 1,246.40 is: 1,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.26 : 5,765.70 = 1,246.40 : x
  2. Step 2: Convert to fraction form
    3,843.26/5,765.70 = 1,246.40/x
  3. Step 3: Cross multiply
    3,843.26x = 5,765.70 × 1,246.40
  4. Step 4: Simplify right side
    3,843.26x = 7,186,368.48
  5. Step 5: Solve for x
    x = 7,186,368.48/3,843.26
  6. Step 6: Final answer
    x = 1,869.86

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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.