Home / 2,175.23-3,267.21-1,299.45

Finding the Fourth Proportional to 2,175.23, 3,267.21 and 1,299.45

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Solution

The fourth proportional to 2,175.23, 3,267.21 and 1,299.45 is: 1,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.23 : 3,267.21 = 1,299.45 : x
  2. Step 2: Convert to fraction form
    2,175.23/3,267.21 = 1,299.45/x
  3. Step 3: Cross multiply
    2,175.23x = 3,267.21 × 1,299.45
  4. Step 4: Simplify right side
    2,175.23x = 4,245,576.03
  5. Step 5: Solve for x
    x = 4,245,576.03/2,175.23
  6. Step 6: Final answer
    x = 1,951.78

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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.