Home / 3,401.53-5,101.35-1,321.14

Finding the Fourth Proportional to 3,401.53, 5,101.35 and 1,321.14

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Solution

The fourth proportional to 3,401.53, 5,101.35 and 1,321.14 is: 1,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.53 : 5,101.35 = 1,321.14 : x
  2. Step 2: Convert to fraction form
    3,401.53/5,101.35 = 1,321.14/x
  3. Step 3: Cross multiply
    3,401.53x = 5,101.35 × 1,321.14
  4. Step 4: Simplify right side
    3,401.53x = 6,739,597.54
  5. Step 5: Solve for x
    x = 6,739,597.54/3,401.53
  6. Step 6: Final answer
    x = 1,981.34

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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.