Home / 3,401.80-5,102.73-936.75

Finding the Fourth Proportional to 3,401.80, 5,102.73 and 936.75

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Solution

The fourth proportional to 3,401.80, 5,102.73 and 936.75 is: 1,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.80 : 5,102.73 = 936.75 : x
  2. Step 2: Convert to fraction form
    3,401.80/5,102.73 = 936.75/x
  3. Step 3: Cross multiply
    3,401.80x = 5,102.73 × 936.75
  4. Step 4: Simplify right side
    3,401.80x = 4,779,997.95
  5. Step 5: Solve for x
    x = 4,779,997.95/3,401.80
  6. Step 6: Final answer
    x = 1,405.14

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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.