Home / 2,771.38-4,153.48-1,126

Finding the Fourth Proportional to 2,771.38, 4,153.48 and 1,126

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Solution

The fourth proportional to 2,771.38, 4,153.48 and 1,126 is: 1,687.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.38 : 4,153.48 = 1,126 : x
  2. Step 2: Convert to fraction form
    2,771.38/4,153.48 = 1,126/x
  3. Step 3: Cross multiply
    2,771.38x = 4,153.48 × 1,126
  4. Step 4: Simplify right side
    2,771.38x = 4,676,818.48
  5. Step 5: Solve for x
    x = 4,676,818.48/2,771.38
  6. Step 6: Final answer
    x = 1,687.54

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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.