Home / 2,151.40-3,223.09-1,806.97

Finding the Fourth Proportional to 2,151.40, 3,223.09 and 1,806.97

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Solution

The fourth proportional to 2,151.40, 3,223.09 and 1,806.97 is: 2,707.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.40 : 3,223.09 = 1,806.97 : x
  2. Step 2: Convert to fraction form
    2,151.40/3,223.09 = 1,806.97/x
  3. Step 3: Cross multiply
    2,151.40x = 3,223.09 × 1,806.97
  4. Step 4: Simplify right side
    2,151.40x = 5,824,026.94
  5. Step 5: Solve for x
    x = 5,824,026.94/2,151.40
  6. Step 6: Final answer
    x = 2,707.09

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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.