Home / 2,771.19-4,158.63-1,310.49

Finding the Fourth Proportional to 2,771.19, 4,158.63 and 1,310.49

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Solution

The fourth proportional to 2,771.19, 4,158.63 and 1,310.49 is: 1,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.19 : 4,158.63 = 1,310.49 : x
  2. Step 2: Convert to fraction form
    2,771.19/4,158.63 = 1,310.49/x
  3. Step 3: Cross multiply
    2,771.19x = 4,158.63 × 1,310.49
  4. Step 4: Simplify right side
    2,771.19x = 5,449,843.03
  5. Step 5: Solve for x
    x = 5,449,843.03/2,771.19
  6. Step 6: Final answer
    x = 1,966.61

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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.