Home / 1,301.10-1,942.38-1,255.54

Finding the Fourth Proportional to 1,301.10, 1,942.38 and 1,255.54

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Solution

The fourth proportional to 1,301.10, 1,942.38 and 1,255.54 is: 1,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.10 : 1,942.38 = 1,255.54 : x
  2. Step 2: Convert to fraction form
    1,301.10/1,942.38 = 1,255.54/x
  3. Step 3: Cross multiply
    1,301.10x = 1,942.38 × 1,255.54
  4. Step 4: Simplify right side
    1,301.10x = 2,438,735.79
  5. Step 5: Solve for x
    x = 2,438,735.79/1,301.10
  6. Step 6: Final answer
    x = 1,874.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.