Home / 6,746.75-10,120.53-2,129.75

Finding the Fourth Proportional to 6,746.75, 10,120.53 and 2,129.75

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Solution

The fourth proportional to 6,746.75, 10,120.53 and 2,129.75 is: 3,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,746.75 : 10,120.53 = 2,129.75 : x
  2. Step 2: Convert to fraction form
    6,746.75/10,120.53 = 2,129.75/x
  3. Step 3: Cross multiply
    6,746.75x = 10,120.53 × 2,129.75
  4. Step 4: Simplify right side
    6,746.75x = 21,554,198.77
  5. Step 5: Solve for x
    x = 21,554,198.77/6,746.75
  6. Step 6: Final answer
    x = 3,194.75

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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.