Home / 3,610.86-5,416.38-1,270.86

Finding the Fourth Proportional to 3,610.86, 5,416.38 and 1,270.86

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Solution

The fourth proportional to 3,610.86, 5,416.38 and 1,270.86 is: 1,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.86 : 5,416.38 = 1,270.86 : x
  2. Step 2: Convert to fraction form
    3,610.86/5,416.38 = 1,270.86/x
  3. Step 3: Cross multiply
    3,610.86x = 5,416.38 × 1,270.86
  4. Step 4: Simplify right side
    3,610.86x = 6,883,460.69
  5. Step 5: Solve for x
    x = 6,883,460.69/3,610.86
  6. Step 6: Final answer
    x = 1,906.32

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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.