Home / 6,761.19-10,143.75-2,081.88

Finding the Fourth Proportional to 6,761.19, 10,143.75 and 2,081.88

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Solution

The fourth proportional to 6,761.19, 10,143.75 and 2,081.88 is: 3,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.19 : 10,143.75 = 2,081.88 : x
  2. Step 2: Convert to fraction form
    6,761.19/10,143.75 = 2,081.88/x
  3. Step 3: Cross multiply
    6,761.19x = 10,143.75 × 2,081.88
  4. Step 4: Simplify right side
    6,761.19x = 21,118,070.25
  5. Step 5: Solve for x
    x = 21,118,070.25/6,761.19
  6. Step 6: Final answer
    x = 3,123.43

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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.