Home / 3,441.69-5,161.10-1,388.25

Finding the Fourth Proportional to 3,441.69, 5,161.10 and 1,388.25

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Solution

The fourth proportional to 3,441.69, 5,161.10 and 1,388.25 is: 2,081.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.69 : 5,161.10 = 1,388.25 : x
  2. Step 2: Convert to fraction form
    3,441.69/5,161.10 = 1,388.25/x
  3. Step 3: Cross multiply
    3,441.69x = 5,161.10 × 1,388.25
  4. Step 4: Simplify right side
    3,441.69x = 7,164,890.13
  5. Step 5: Solve for x
    x = 7,164,890.13/3,441.69
  6. Step 6: Final answer
    x = 2,081.79

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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.