Home / 2,766.21-4,139.56-1,726.70

Finding the Fourth Proportional to 2,766.21, 4,139.56 and 1,726.70

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Solution

The fourth proportional to 2,766.21, 4,139.56 and 1,726.70 is: 2,583.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.21 : 4,139.56 = 1,726.70 : x
  2. Step 2: Convert to fraction form
    2,766.21/4,139.56 = 1,726.70/x
  3. Step 3: Cross multiply
    2,766.21x = 4,139.56 × 1,726.70
  4. Step 4: Simplify right side
    2,766.21x = 7,147,757.55
  5. Step 5: Solve for x
    x = 7,147,757.55/2,766.21
  6. Step 6: Final answer
    x = 2,583.96

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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.