Home / 7,161.98-10,741.72-1,966.64

Finding the Fourth Proportional to 7,161.98, 10,741.72 and 1,966.64

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Solution

The fourth proportional to 7,161.98, 10,741.72 and 1,966.64 is: 2,949.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.98 : 10,741.72 = 1,966.64 : x
  2. Step 2: Convert to fraction form
    7,161.98/10,741.72 = 1,966.64/x
  3. Step 3: Cross multiply
    7,161.98x = 10,741.72 × 1,966.64
  4. Step 4: Simplify right side
    7,161.98x = 21,125,047.43
  5. Step 5: Solve for x
    x = 21,125,047.43/7,161.98
  6. Step 6: Final answer
    x = 2,949.61

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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.