Home / 2,786.20-4,175.65-1,401.10

Finding the Fourth Proportional to 2,786.20, 4,175.65 and 1,401.10

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Solution

The fourth proportional to 2,786.20, 4,175.65 and 1,401.10 is: 2,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.20 : 4,175.65 = 1,401.10 : x
  2. Step 2: Convert to fraction form
    2,786.20/4,175.65 = 1,401.10/x
  3. Step 3: Cross multiply
    2,786.20x = 4,175.65 × 1,401.10
  4. Step 4: Simplify right side
    2,786.20x = 5,850,503.22
  5. Step 5: Solve for x
    x = 5,850,503.22/2,786.20
  6. Step 6: Final answer
    x = 2,099.81

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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.