Home / 3,709.80-5,561.26-1,243.35

Finding the Fourth Proportional to 3,709.80, 5,561.26 and 1,243.35

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Solution

The fourth proportional to 3,709.80, 5,561.26 and 1,243.35 is: 1,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.80 : 5,561.26 = 1,243.35 : x
  2. Step 2: Convert to fraction form
    3,709.80/5,561.26 = 1,243.35/x
  3. Step 3: Cross multiply
    3,709.80x = 5,561.26 × 1,243.35
  4. Step 4: Simplify right side
    3,709.80x = 6,914,589.51
  5. Step 5: Solve for x
    x = 6,914,589.51/3,709.80
  6. Step 6: Final answer
    x = 1,863.87

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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.