Home / 2,135.46-3,203.20-674.60

Finding the Fourth Proportional to 2,135.46, 3,203.20 and 674.60

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Solution

The fourth proportional to 2,135.46, 3,203.20 and 674.60 is: 1,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.46 : 3,203.20 = 674.60 : x
  2. Step 2: Convert to fraction form
    2,135.46/3,203.20 = 674.60/x
  3. Step 3: Cross multiply
    2,135.46x = 3,203.20 × 674.60
  4. Step 4: Simplify right side
    2,135.46x = 2,160,878.72
  5. Step 5: Solve for x
    x = 2,160,878.72/2,135.46
  6. Step 6: Final answer
    x = 1,011.90

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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.