Home / 4,784.42-7,175.82-1,321.68

Finding the Fourth Proportional to 4,784.42, 7,175.82 and 1,321.68

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Solution

The fourth proportional to 4,784.42, 7,175.82 and 1,321.68 is: 1,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.42 : 7,175.82 = 1,321.68 : x
  2. Step 2: Convert to fraction form
    4,784.42/7,175.82 = 1,321.68/x
  3. Step 3: Cross multiply
    4,784.42x = 7,175.82 × 1,321.68
  4. Step 4: Simplify right side
    4,784.42x = 9,484,137.78
  5. Step 5: Solve for x
    x = 9,484,137.78/4,784.42
  6. Step 6: Final answer
    x = 1,982.30

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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.