Home / 2,768.55-4,152.92-1,125.06

Finding the Fourth Proportional to 2,768.55, 4,152.92 and 1,125.06

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Solution

The fourth proportional to 2,768.55, 4,152.92 and 1,125.06 is: 1,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.55 : 4,152.92 = 1,125.06 : x
  2. Step 2: Convert to fraction form
    2,768.55/4,152.92 = 1,125.06/x
  3. Step 3: Cross multiply
    2,768.55x = 4,152.92 × 1,125.06
  4. Step 4: Simplify right side
    2,768.55x = 4,672,284.18
  5. Step 5: Solve for x
    x = 4,672,284.18/2,768.55
  6. Step 6: Final answer
    x = 1,687.63

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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.