Home / 3,419.42-5,131.55-1,228.16

Finding the Fourth Proportional to 3,419.42, 5,131.55 and 1,228.16

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Solution

The fourth proportional to 3,419.42, 5,131.55 and 1,228.16 is: 1,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.42 : 5,131.55 = 1,228.16 : x
  2. Step 2: Convert to fraction form
    3,419.42/5,131.55 = 1,228.16/x
  3. Step 3: Cross multiply
    3,419.42x = 5,131.55 × 1,228.16
  4. Step 4: Simplify right side
    3,419.42x = 6,302,380.35
  5. Step 5: Solve for x
    x = 6,302,380.35/3,419.42
  6. Step 6: Final answer
    x = 1,843.12

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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.