Home / 3,404.12-5,105.16-1,212.35

Finding the Fourth Proportional to 3,404.12, 5,105.16 and 1,212.35

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Solution

The fourth proportional to 3,404.12, 5,105.16 and 1,212.35 is: 1,818.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.12 : 5,105.16 = 1,212.35 : x
  2. Step 2: Convert to fraction form
    3,404.12/5,105.16 = 1,212.35/x
  3. Step 3: Cross multiply
    3,404.12x = 5,105.16 × 1,212.35
  4. Step 4: Simplify right side
    3,404.12x = 6,189,215.20
  5. Step 5: Solve for x
    x = 6,189,215.20/3,404.12
  6. Step 6: Final answer
    x = 1,818.16

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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.