Home / 5,418.76-8,132.40-2,786.16

Finding the Fourth Proportional to 5,418.76, 8,132.40 and 2,786.16

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Solution

The fourth proportional to 5,418.76, 8,132.40 and 2,786.16 is: 4,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.76 : 8,132.40 = 2,786.16 : x
  2. Step 2: Convert to fraction form
    5,418.76/8,132.40 = 2,786.16/x
  3. Step 3: Cross multiply
    5,418.76x = 8,132.40 × 2,786.16
  4. Step 4: Simplify right side
    5,418.76x = 22,658,167.58
  5. Step 5: Solve for x
    x = 22,658,167.58/5,418.76
  6. Step 6: Final answer
    x = 4,181.43

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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.