Home / 6,121.16-9,186.78-2,657.96

Finding the Fourth Proportional to 6,121.16, 9,186.78 and 2,657.96

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Solution

The fourth proportional to 6,121.16, 9,186.78 and 2,657.96 is: 3,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.16 : 9,186.78 = 2,657.96 : x
  2. Step 2: Convert to fraction form
    6,121.16/9,186.78 = 2,657.96/x
  3. Step 3: Cross multiply
    6,121.16x = 9,186.78 × 2,657.96
  4. Step 4: Simplify right side
    6,121.16x = 24,418,093.77
  5. Step 5: Solve for x
    x = 24,418,093.77/6,121.16
  6. Step 6: Final answer
    x = 3,989.13

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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.