Home / 3,401.85-5,102.70-936.61

Finding the Fourth Proportional to 3,401.85, 5,102.70 and 936.61

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Solution

The fourth proportional to 3,401.85, 5,102.70 and 936.61 is: 1,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.85 : 5,102.70 = 936.61 : x
  2. Step 2: Convert to fraction form
    3,401.85/5,102.70 = 936.61/x
  3. Step 3: Cross multiply
    3,401.85x = 5,102.70 × 936.61
  4. Step 4: Simplify right side
    3,401.85x = 4,779,252.28
  5. Step 5: Solve for x
    x = 4,779,252.28/3,401.85
  6. Step 6: Final answer
    x = 1,404.90

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1.5x scale

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.