Home / 3,175.70-4,768.83-2,142.35

Finding the Fourth Proportional to 3,175.70, 4,768.83 and 2,142.35

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Solution

The fourth proportional to 3,175.70, 4,768.83 and 2,142.35 is: 3,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.70 : 4,768.83 = 2,142.35 : x
  2. Step 2: Convert to fraction form
    3,175.70/4,768.83 = 2,142.35/x
  3. Step 3: Cross multiply
    3,175.70x = 4,768.83 × 2,142.35
  4. Step 4: Simplify right side
    3,175.70x = 10,216,502.95
  5. Step 5: Solve for x
    x = 10,216,502.95/3,175.70
  6. Step 6: Final answer
    x = 3,217.09

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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.