Home / 3,407.96-5,109.86-1,186.29

Finding the Fourth Proportional to 3,407.96, 5,109.86 and 1,186.29

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Solution

The fourth proportional to 3,407.96, 5,109.86 and 1,186.29 is: 1,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.96 : 5,109.86 = 1,186.29 : x
  2. Step 2: Convert to fraction form
    3,407.96/5,109.86 = 1,186.29/x
  3. Step 3: Cross multiply
    3,407.96x = 5,109.86 × 1,186.29
  4. Step 4: Simplify right side
    3,407.96x = 6,061,778.79
  5. Step 5: Solve for x
    x = 6,061,778.79/3,407.96
  6. Step 6: Final answer
    x = 1,778.71

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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.