Home / 2,771.66-4,158.84-1,129.34

Finding the Fourth Proportional to 2,771.66, 4,158.84 and 1,129.34

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Solution

The fourth proportional to 2,771.66, 4,158.84 and 1,129.34 is: 1,694.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.66 : 4,158.84 = 1,129.34 : x
  2. Step 2: Convert to fraction form
    2,771.66/4,158.84 = 1,129.34/x
  3. Step 3: Cross multiply
    2,771.66x = 4,158.84 × 1,129.34
  4. Step 4: Simplify right side
    2,771.66x = 4,696,744.37
  5. Step 5: Solve for x
    x = 4,696,744.37/2,771.66
  6. Step 6: Final answer
    x = 1,694.56

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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.