Home / 3,105.60-4,656.93-1,129.85

Finding the Fourth Proportional to 3,105.60, 4,656.93 and 1,129.85

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Solution

The fourth proportional to 3,105.60, 4,656.93 and 1,129.85 is: 1,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.60 : 4,656.93 = 1,129.85 : x
  2. Step 2: Convert to fraction form
    3,105.60/4,656.93 = 1,129.85/x
  3. Step 3: Cross multiply
    3,105.60x = 4,656.93 × 1,129.85
  4. Step 4: Simplify right side
    3,105.60x = 5,261,632.36
  5. Step 5: Solve for x
    x = 5,261,632.36/3,105.60
  6. Step 6: Final answer
    x = 1,694.24

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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.