Home / 4,129.72-6,195.52-1,790.11

Finding the Fourth Proportional to 4,129.72, 6,195.52 and 1,790.11

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Solution

The fourth proportional to 4,129.72, 6,195.52 and 1,790.11 is: 2,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.72 : 6,195.52 = 1,790.11 : x
  2. Step 2: Convert to fraction form
    4,129.72/6,195.52 = 1,790.11/x
  3. Step 3: Cross multiply
    4,129.72x = 6,195.52 × 1,790.11
  4. Step 4: Simplify right side
    4,129.72x = 11,090,662.31
  5. Step 5: Solve for x
    x = 11,090,662.31/4,129.72
  6. Step 6: Final answer
    x = 2,685.58

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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.