Home / 2,758.93-4,138.38-1,115.03

Finding the Fourth Proportional to 2,758.93, 4,138.38 and 1,115.03

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Solution

The fourth proportional to 2,758.93, 4,138.38 and 1,115.03 is: 1,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.93 : 4,138.38 = 1,115.03 : x
  2. Step 2: Convert to fraction form
    2,758.93/4,138.38 = 1,115.03/x
  3. Step 3: Cross multiply
    2,758.93x = 4,138.38 × 1,115.03
  4. Step 4: Simplify right side
    2,758.93x = 4,614,428.20
  5. Step 5: Solve for x
    x = 4,614,428.20/2,758.93
  6. Step 6: Final answer
    x = 1,672.54

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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.