Home / 1,761.21-2,636.31-1,372.32

Finding the Fourth Proportional to 1,761.21, 2,636.31 and 1,372.32

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Solution

The fourth proportional to 1,761.21, 2,636.31 and 1,372.32 is: 2,054.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.21 : 2,636.31 = 1,372.32 : x
  2. Step 2: Convert to fraction form
    1,761.21/2,636.31 = 1,372.32/x
  3. Step 3: Cross multiply
    1,761.21x = 2,636.31 × 1,372.32
  4. Step 4: Simplify right side
    1,761.21x = 3,617,860.94
  5. Step 5: Solve for x
    x = 3,617,860.94/1,761.21
  6. Step 6: Final answer
    x = 2,054.19

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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.