Home / 2,175.89-3,260.39-1,296.23

Finding the Fourth Proportional to 2,175.89, 3,260.39 and 1,296.23

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Solution

The fourth proportional to 2,175.89, 3,260.39 and 1,296.23 is: 1,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.89 : 3,260.39 = 1,296.23 : x
  2. Step 2: Convert to fraction form
    2,175.89/3,260.39 = 1,296.23/x
  3. Step 3: Cross multiply
    2,175.89x = 3,260.39 × 1,296.23
  4. Step 4: Simplify right side
    2,175.89x = 4,226,192.55
  5. Step 5: Solve for x
    x = 4,226,192.55/2,175.89
  6. Step 6: Final answer
    x = 1,942.29

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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.