Home / 6,891.74-10,333.80-2,146.61

Finding the Fourth Proportional to 6,891.74, 10,333.80 and 2,146.61

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Solution

The fourth proportional to 6,891.74, 10,333.80 and 2,146.61 is: 3,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.74 : 10,333.80 = 2,146.61 : x
  2. Step 2: Convert to fraction form
    6,891.74/10,333.80 = 2,146.61/x
  3. Step 3: Cross multiply
    6,891.74x = 10,333.80 × 2,146.61
  4. Step 4: Simplify right side
    6,891.74x = 22,182,586.75
  5. Step 5: Solve for x
    x = 22,182,586.75/6,891.74
  6. Step 6: Final answer
    x = 3,218.72

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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.