Home / 2,786.87-4,180.85-1,031.89

Finding the Fourth Proportional to 2,786.87, 4,180.85 and 1,031.89

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Solution

The fourth proportional to 2,786.87, 4,180.85 and 1,031.89 is: 1,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.87 : 4,180.85 = 1,031.89 : x
  2. Step 2: Convert to fraction form
    2,786.87/4,180.85 = 1,031.89/x
  3. Step 3: Cross multiply
    2,786.87x = 4,180.85 × 1,031.89
  4. Step 4: Simplify right side
    2,786.87x = 4,314,169.43
  5. Step 5: Solve for x
    x = 4,314,169.43/2,786.87
  6. Step 6: Final answer
    x = 1,548.03

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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.