Home / 2,749.26-4,123.20-1,248.43

Finding the Fourth Proportional to 2,749.26, 4,123.20 and 1,248.43

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Solution

The fourth proportional to 2,749.26, 4,123.20 and 1,248.43 is: 1,872.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.26 : 4,123.20 = 1,248.43 : x
  2. Step 2: Convert to fraction form
    2,749.26/4,123.20 = 1,248.43/x
  3. Step 3: Cross multiply
    2,749.26x = 4,123.20 × 1,248.43
  4. Step 4: Simplify right side
    2,749.26x = 5,147,516.27
  5. Step 5: Solve for x
    x = 5,147,516.27/2,749.26
  6. Step 6: Final answer
    x = 1,872.33

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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.