Home / 2,531.88-3,792.96-1,489.68

Finding the Fourth Proportional to 2,531.88, 3,792.96 and 1,489.68

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Solution

The fourth proportional to 2,531.88, 3,792.96 and 1,489.68 is: 2,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.88 : 3,792.96 = 1,489.68 : x
  2. Step 2: Convert to fraction form
    2,531.88/3,792.96 = 1,489.68/x
  3. Step 3: Cross multiply
    2,531.88x = 3,792.96 × 1,489.68
  4. Step 4: Simplify right side
    2,531.88x = 5,650,296.65
  5. Step 5: Solve for x
    x = 5,650,296.65/2,531.88
  6. Step 6: Final answer
    x = 2,231.66

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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.