Home / 4,785.72-7,178.97-1,322.97

Finding the Fourth Proportional to 4,785.72, 7,178.97 and 1,322.97

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Solution

The fourth proportional to 4,785.72, 7,178.97 and 1,322.97 is: 1,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.72 : 7,178.97 = 1,322.97 : x
  2. Step 2: Convert to fraction form
    4,785.72/7,178.97 = 1,322.97/x
  3. Step 3: Cross multiply
    4,785.72x = 7,178.97 × 1,322.97
  4. Step 4: Simplify right side
    4,785.72x = 9,497,561.94
  5. Step 5: Solve for x
    x = 9,497,561.94/4,785.72
  6. Step 6: Final answer
    x = 1,984.56

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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.