Home / 3,481.68-5,221.35-1,401.15

Finding the Fourth Proportional to 3,481.68, 5,221.35 and 1,401.15

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Solution

The fourth proportional to 3,481.68, 5,221.35 and 1,401.15 is: 2,101.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.68 : 5,221.35 = 1,401.15 : x
  2. Step 2: Convert to fraction form
    3,481.68/5,221.35 = 1,401.15/x
  3. Step 3: Cross multiply
    3,481.68x = 5,221.35 × 1,401.15
  4. Step 4: Simplify right side
    3,481.68x = 7,315,894.55
  5. Step 5: Solve for x
    x = 7,315,894.55/3,481.68
  6. Step 6: Final answer
    x = 2,101.25

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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.