Home / 5,129.43-7,689.53-1,841.75

Finding the Fourth Proportional to 5,129.43, 7,689.53 and 1,841.75

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Solution

The fourth proportional to 5,129.43, 7,689.53 and 1,841.75 is: 2,760.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.43 : 7,689.53 = 1,841.75 : x
  2. Step 2: Convert to fraction form
    5,129.43/7,689.53 = 1,841.75/x
  3. Step 3: Cross multiply
    5,129.43x = 7,689.53 × 1,841.75
  4. Step 4: Simplify right side
    5,129.43x = 14,162,191.88
  5. Step 5: Solve for x
    x = 14,162,191.88/5,129.43
  6. Step 6: Final answer
    x = 2,760.97

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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.