Home / 3,481.08-5,242.32-3,138.45

Finding the Fourth Proportional to 3,481.08, 5,242.32 and 3,138.45

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Solution

The fourth proportional to 3,481.08, 5,242.32 and 3,138.45 is: 4,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.08 : 5,242.32 = 3,138.45 : x
  2. Step 2: Convert to fraction form
    3,481.08/5,242.32 = 3,138.45/x
  3. Step 3: Cross multiply
    3,481.08x = 5,242.32 × 3,138.45
  4. Step 4: Simplify right side
    3,481.08x = 16,452,759.20
  5. Step 5: Solve for x
    x = 16,452,759.20/3,481.08
  6. Step 6: Final answer
    x = 4,726.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.