Home / 6,964.48-9,611.22-4,979.78

Finding the Fourth Proportional to 6,964.48, 9,611.22 and 4,979.78

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Solution

The fourth proportional to 6,964.48, 9,611.22 and 4,979.78 is: 6,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,964.48 : 9,611.22 = 4,979.78 : x
  2. Step 2: Convert to fraction form
    6,964.48/9,611.22 = 4,979.78/x
  3. Step 3: Cross multiply
    6,964.48x = 9,611.22 × 4,979.78
  4. Step 4: Simplify right side
    6,964.48x = 47,861,767.79
  5. Step 5: Solve for x
    x = 47,861,767.79/6,964.48
  6. Step 6: Final answer
    x = 6,872.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.