Home / 6,889.11-10,329.86-2,143.98

Finding the Fourth Proportional to 6,889.11, 10,329.86 and 2,143.98

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Solution

The fourth proportional to 6,889.11, 10,329.86 and 2,143.98 is: 3,214.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.11 : 10,329.86 = 2,143.98 : x
  2. Step 2: Convert to fraction form
    6,889.11/10,329.86 = 2,143.98/x
  3. Step 3: Cross multiply
    6,889.11x = 10,329.86 × 2,143.98
  4. Step 4: Simplify right side
    6,889.11x = 22,147,018.60
  5. Step 5: Solve for x
    x = 22,147,018.60/6,889.11
  6. Step 6: Final answer
    x = 3,214.79

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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.