Home / 2,749.14-4,123.17-1,105.65

Finding the Fourth Proportional to 2,749.14, 4,123.17 and 1,105.65

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Solution

The fourth proportional to 2,749.14, 4,123.17 and 1,105.65 is: 1,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.14 : 4,123.17 = 1,105.65 : x
  2. Step 2: Convert to fraction form
    2,749.14/4,123.17 = 1,105.65/x
  3. Step 3: Cross multiply
    2,749.14x = 4,123.17 × 1,105.65
  4. Step 4: Simplify right side
    2,749.14x = 4,558,782.91
  5. Step 5: Solve for x
    x = 4,558,782.91/2,749.14
  6. Step 6: Final answer
    x = 1,658.26

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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.