Home / 3,415.10-5,120.04-1,441.33

Finding the Fourth Proportional to 3,415.10, 5,120.04 and 1,441.33

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Solution

The fourth proportional to 3,415.10, 5,120.04 and 1,441.33 is: 2,160.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.10 : 5,120.04 = 1,441.33 : x
  2. Step 2: Convert to fraction form
    3,415.10/5,120.04 = 1,441.33/x
  3. Step 3: Cross multiply
    3,415.10x = 5,120.04 × 1,441.33
  4. Step 4: Simplify right side
    3,415.10x = 7,379,659.86
  5. Step 5: Solve for x
    x = 7,379,659.86/3,415.10
  6. Step 6: Final answer
    x = 2,160.89

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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.