Home / 3,103.45-4,656.05-1,255.86

Finding the Fourth Proportional to 3,103.45, 4,656.05 and 1,255.86

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Solution

The fourth proportional to 3,103.45, 4,656.05 and 1,255.86 is: 1,884.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.45 : 4,656.05 = 1,255.86 : x
  2. Step 2: Convert to fraction form
    3,103.45/4,656.05 = 1,255.86/x
  3. Step 3: Cross multiply
    3,103.45x = 4,656.05 × 1,255.86
  4. Step 4: Simplify right side
    3,103.45x = 5,847,358.13
  5. Step 5: Solve for x
    x = 5,847,358.13/3,103.45
  6. Step 6: Final answer
    x = 1,884.15

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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.