Home / 3,449.86-5,174.28-1,109.55

Finding the Fourth Proportional to 3,449.86, 5,174.28 and 1,109.55

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Solution

The fourth proportional to 3,449.86, 5,174.28 and 1,109.55 is: 1,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.86 : 5,174.28 = 1,109.55 : x
  2. Step 2: Convert to fraction form
    3,449.86/5,174.28 = 1,109.55/x
  3. Step 3: Cross multiply
    3,449.86x = 5,174.28 × 1,109.55
  4. Step 4: Simplify right side
    3,449.86x = 5,741,122.37
  5. Step 5: Solve for x
    x = 5,741,122.37/3,449.86
  6. Step 6: Final answer
    x = 1,664.16

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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.