Home / 6,343.30-9,516.30-1,961.20

Finding the Fourth Proportional to 6,343.30, 9,516.30 and 1,961.20

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Solution

The fourth proportional to 6,343.30, 9,516.30 and 1,961.20 is: 2,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.30 : 9,516.30 = 1,961.20 : x
  2. Step 2: Convert to fraction form
    6,343.30/9,516.30 = 1,961.20/x
  3. Step 3: Cross multiply
    6,343.30x = 9,516.30 × 1,961.20
  4. Step 4: Simplify right side
    6,343.30x = 18,663,367.56
  5. Step 5: Solve for x
    x = 18,663,367.56/6,343.30
  6. Step 6: Final answer
    x = 2,942.22

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1.5x scale

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.