Home / 3,456.17-5,187.26-1,813.87

Finding the Fourth Proportional to 3,456.17, 5,187.26 and 1,813.87

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Solution

The fourth proportional to 3,456.17, 5,187.26 and 1,813.87 is: 2,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,456.17 : 5,187.26 = 1,813.87 : x
  2. Step 2: Convert to fraction form
    3,456.17/5,187.26 = 1,813.87/x
  3. Step 3: Cross multiply
    3,456.17x = 5,187.26 × 1,813.87
  4. Step 4: Simplify right side
    3,456.17x = 9,409,015.30
  5. Step 5: Solve for x
    x = 9,409,015.30/3,456.17
  6. Step 6: Final answer
    x = 2,722.38

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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.