Home / 2,786.98-4,180.34-1,143.12

Finding the Fourth Proportional to 2,786.98, 4,180.34 and 1,143.12

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Solution

The fourth proportional to 2,786.98, 4,180.34 and 1,143.12 is: 1,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.98 : 4,180.34 = 1,143.12 : x
  2. Step 2: Convert to fraction form
    2,786.98/4,180.34 = 1,143.12/x
  3. Step 3: Cross multiply
    2,786.98x = 4,180.34 × 1,143.12
  4. Step 4: Simplify right side
    2,786.98x = 4,778,630.26
  5. Step 5: Solve for x
    x = 4,778,630.26/2,786.98
  6. Step 6: Final answer
    x = 1,714.63

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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.