Home / 5,456.41-8,186.21-1,758.56

Finding the Fourth Proportional to 5,456.41, 8,186.21 and 1,758.56

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Solution

The fourth proportional to 5,456.41, 8,186.21 and 1,758.56 is: 2,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.41 : 8,186.21 = 1,758.56 : x
  2. Step 2: Convert to fraction form
    5,456.41/8,186.21 = 1,758.56/x
  3. Step 3: Cross multiply
    5,456.41x = 8,186.21 × 1,758.56
  4. Step 4: Simplify right side
    5,456.41x = 14,395,891.73
  5. Step 5: Solve for x
    x = 14,395,891.73/5,456.41
  6. Step 6: Final answer
    x = 2,638.35

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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.