Home / 2,144.67-3,221.94-1,521.51

Finding the Fourth Proportional to 2,144.67, 3,221.94 and 1,521.51

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Solution

The fourth proportional to 2,144.67, 3,221.94 and 1,521.51 is: 2,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.67 : 3,221.94 = 1,521.51 : x
  2. Step 2: Convert to fraction form
    2,144.67/3,221.94 = 1,521.51/x
  3. Step 3: Cross multiply
    2,144.67x = 3,221.94 × 1,521.51
  4. Step 4: Simplify right side
    2,144.67x = 4,902,213.93
  5. Step 5: Solve for x
    x = 4,902,213.93/2,144.67
  6. Step 6: Final answer
    x = 2,285.77

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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.