Home / 3,404.49-5,106.90-939.25

Finding the Fourth Proportional to 3,404.49, 5,106.90 and 939.25

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Solution

The fourth proportional to 3,404.49, 5,106.90 and 939.25 is: 1,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404.49 : 5,106.90 = 939.25 : x
  2. Step 2: Convert to fraction form
    3,404.49/5,106.90 = 939.25/x
  3. Step 3: Cross multiply
    3,404.49x = 5,106.90 × 939.25
  4. Step 4: Simplify right side
    3,404.49x = 4,796,651.13
  5. Step 5: Solve for x
    x = 4,796,651.13/3,404.49
  6. Step 6: Final answer
    x = 1,408.92

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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.