Home / 3,174.49-4,380.79-1,830.09

Finding the Fourth Proportional to 3,174.49, 4,380.79 and 1,830.09

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Solution

The fourth proportional to 3,174.49, 4,380.79 and 1,830.09 is: 2,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.49 : 4,380.79 = 1,830.09 : x
  2. Step 2: Convert to fraction form
    3,174.49/4,380.79 = 1,830.09/x
  3. Step 3: Cross multiply
    3,174.49x = 4,380.79 × 1,830.09
  4. Step 4: Simplify right side
    3,174.49x = 8,017,247.73
  5. Step 5: Solve for x
    x = 8,017,247.73/3,174.49
  6. Step 6: Final answer
    x = 2,525.52

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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.