Home / 2,149.12-3,225.30-1,721.44

Finding the Fourth Proportional to 2,149.12, 3,225.30 and 1,721.44

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Solution

The fourth proportional to 2,149.12, 3,225.30 and 1,721.44 is: 2,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.12 : 3,225.30 = 1,721.44 : x
  2. Step 2: Convert to fraction form
    2,149.12/3,225.30 = 1,721.44/x
  3. Step 3: Cross multiply
    2,149.12x = 3,225.30 × 1,721.44
  4. Step 4: Simplify right side
    2,149.12x = 5,552,160.43
  5. Step 5: Solve for x
    x = 5,552,160.43/2,149.12
  6. Step 6: Final answer
    x = 2,583.46

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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.