Home / 2,531.79-3,786.53-1,489.23

Finding the Fourth Proportional to 2,531.79, 3,786.53 and 1,489.23

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Solution

The fourth proportional to 2,531.79, 3,786.53 and 1,489.23 is: 2,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.79 : 3,786.53 = 1,489.23 : x
  2. Step 2: Convert to fraction form
    2,531.79/3,786.53 = 1,489.23/x
  3. Step 3: Cross multiply
    2,531.79x = 3,786.53 × 1,489.23
  4. Step 4: Simplify right side
    2,531.79x = 5,639,006.63
  5. Step 5: Solve for x
    x = 5,639,006.63/2,531.79
  6. Step 6: Final answer
    x = 2,227.28

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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.