Home / 2,747.58-4,122.14-1,105.28

Finding the Fourth Proportional to 2,747.58, 4,122.14 and 1,105.28

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Solution

The fourth proportional to 2,747.58, 4,122.14 and 1,105.28 is: 1,658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.58 : 4,122.14 = 1,105.28 : x
  2. Step 2: Convert to fraction form
    2,747.58/4,122.14 = 1,105.28/x
  3. Step 3: Cross multiply
    2,747.58x = 4,122.14 × 1,105.28
  4. Step 4: Simplify right side
    2,747.58x = 4,556,118.90
  5. Step 5: Solve for x
    x = 4,556,118.90/2,747.58
  6. Step 6: Final answer
    x = 1,658.23

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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.