Home / 2,135.28-3,201.68-1,038.26

Finding the Fourth Proportional to 2,135.28, 3,201.68 and 1,038.26

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Solution

The fourth proportional to 2,135.28, 3,201.68 and 1,038.26 is: 1,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.28 : 3,201.68 = 1,038.26 : x
  2. Step 2: Convert to fraction form
    2,135.28/3,201.68 = 1,038.26/x
  3. Step 3: Cross multiply
    2,135.28x = 3,201.68 × 1,038.26
  4. Step 4: Simplify right side
    2,135.28x = 3,324,176.28
  5. Step 5: Solve for x
    x = 3,324,176.28/2,135.28
  6. Step 6: Final answer
    x = 1,556.79

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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.