Home / 3,404.30-5,106.26-905.42

Finding the Fourth Proportional to 3,404.30, 5,106.26 and 905.42

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Solution

The fourth proportional to 3,404.30, 5,106.26 and 905.42 is: 1,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.30 : 5,106.26 = 905.42 : x
  2. Step 2: Convert to fraction form
    3,404.30/5,106.26 = 905.42/x
  3. Step 3: Cross multiply
    3,404.30x = 5,106.26 × 905.42
  4. Step 4: Simplify right side
    3,404.30x = 4,623,309.93
  5. Step 5: Solve for x
    x = 4,623,309.93/3,404.30
  6. Step 6: Final answer
    x = 1,358.08

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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.