Home / 2,531.22-3,489.26-1,970.70

Finding the Fourth Proportional to 2,531.22, 3,489.26 and 1,970.70

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Solution

The fourth proportional to 2,531.22, 3,489.26 and 1,970.70 is: 2,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.22 : 3,489.26 = 1,970.70 : x
  2. Step 2: Convert to fraction form
    2,531.22/3,489.26 = 1,970.70/x
  3. Step 3: Cross multiply
    2,531.22x = 3,489.26 × 1,970.70
  4. Step 4: Simplify right side
    2,531.22x = 6,876,284.68
  5. Step 5: Solve for x
    x = 6,876,284.68/2,531.22
  6. Step 6: Final answer
    x = 2,716.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.