Home / 6,760.25-10,142-2,143.25

Finding the Fourth Proportional to 6,760.25, 10,142 and 2,143.25

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Solution

The fourth proportional to 6,760.25, 10,142 and 2,143.25 is: 3,215.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.25 : 10,142 = 2,143.25 : x
  2. Step 2: Convert to fraction form
    6,760.25/10,142 = 2,143.25/x
  3. Step 3: Cross multiply
    6,760.25x = 10,142 × 2,143.25
  4. Step 4: Simplify right side
    6,760.25x = 21,736,841.50
  5. Step 5: Solve for x
    x = 21,736,841.50/6,760.25
  6. Step 6: Final answer
    x = 3,215.39

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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.