Home / 2,771.56-4,153.26-1,126.12

Finding the Fourth Proportional to 2,771.56, 4,153.26 and 1,126.12

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Solution

The fourth proportional to 2,771.56, 4,153.26 and 1,126.12 is: 1,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.56 : 4,153.26 = 1,126.12 : x
  2. Step 2: Convert to fraction form
    2,771.56/4,153.26 = 1,126.12/x
  3. Step 3: Cross multiply
    2,771.56x = 4,153.26 × 1,126.12
  4. Step 4: Simplify right side
    2,771.56x = 4,677,069.15
  5. Step 5: Solve for x
    x = 4,677,069.15/2,771.56
  6. Step 6: Final answer
    x = 1,687.52

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1.5x scale

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.